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PPXLROASTERS
PXL Roasters
  • History
  • Provenance

    Each image, its nature and its source

    NaturalImageAuthor, institutionDateLicenseUsed in

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    The 653 items displayed on the site, with their author, their date, their license and the address where it is published. Under the images appears only what the license requires, that is, almost nothing for the public domain and free collections; the register, for its part, is complete.

    Caffeol poster, the best coffee substituteGino Boccasile (1901-1952) · c. 1930CC0 source
    Café Collas poster, Pearls of the IndiesAnonymous poster artist, La Semeuse printing house, France · 1927Public domain source
    Cafés Biard poster, the ten-centime cupMaurice Neumont (1868-1930), Établissements Minot printer, Paris; Bibliothèque nationale de France · 1908Public domain source
    Feima poster, a coffee substitute with coffee beans addedLudwig Hohlwein (1874-1949) · 1926Public domain source
    Poster for Imperial fig coffeeKoszler studio, Vienna · early 20th centuryCC BY-SA 4.0 source
    Tram cards, spring 1921William H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 464Public domain source
    Drying yard of a plantation in Costa RicaWilliam H. Ukers, All About Coffee (New York, 1922) · photograph from the 1922 edition, p. 266Public domain source
    Coffee drying yard, Chuva district, GuatemalaWilliam H. Ukers, All About Coffee (New York, 1922) · photograph from the 1922 edition, p. 265Public domain source
    Drying yards of the Schmidt fazenda, the largest in BrazilWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 261Public domain source
    Open-air drying yards on a plantation in West JavaWilliam H. Ukers, All About Coffee (New York, 1922) · photograph from the 1922 edition, p. 270Public domain source
    Drying yards, pulping building and fermentation tanks in Brazil and Costa Rica, plate from All About CoffeeWilliam H. Ukers, All About Coffee, The Tea and Coffee Trade Journal Company, New York, 1922 · 1922, plate from the chapter “Preparing green coffee for market”Public domain (work published in the United States in 1922, copyright expired) source
    Old kafa coffee cup, EthiopiaRod Waddington (Wikimedia Commons) · 2014 photographCC BY-SA 2.0 source
    Old and new loading methods, SantosWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 315Public domain source
    Old coffee-making apparatus, foreign and AmericanWilliam H. Ukers, All About Coffee (New York, 1922) · illustration from the 1922 edition, p. 632Public domain source
    Heinrich Trillich's apparatus for extracting caffeine from coffee, US patent No. 964,944Heinrich Trillich, Munich; United States Patent Office, Washington · filed April 15, 1909, issued July 19, 1910, US patent 964,944, single drawing sheetPublic domain (plate from a US patent, official document of the United States Patent Office not subject to copyright) source
    Heinrich Trillich's apparatus for extracting caffeine from whole beans, US patent No. 953,074Heinrich Trillich, Munich; United States Patent Office, Washington · filed April 15, 1909, issued March 29, 1910, US patent 953,074, single drawing sheetPublic domain (plate from a US patent, official document of the United States Patent Office not subject to copyright) source
    Giuseppe Tagliabue's apparatus for measuring the alcohol content of a fermenting must, US patent No. 111,885, drawing plateGiuseppe Tagliabue, instrument maker in New York; United States Patent Office, Washington · issued February 14, 1871, US patent 111,885, single drawing sheetPublic domain (plate from a US patent, official document of the United States Patent Office not subject to copyright) source
    Roberto Okrassa's coffee washing apparatus, Antigua (Guatemala), US patent No. 1,013,807Roberto Okrassa, Antigua (Guatemala); United States Patent Office, Washington · filed September 30, 1911, issued January 2, 1912, US patent 1,013,807, single drawing sheetPublic domain (plate from a US patent, official document of the United States Patent Office not subject to copyright) source
    W. A. Hastings and N. J. Harrington's coffee cherry cleaning apparatus, US patent No. 700,327William A. Hastings (Oakland) and N. J. Harrington (San Francisco); United States Patent Office, Washington · filed January 14, 1901, issued May 20, 1902, US patent 700,327, single drawing sheetPublic domain (plate from a US patent, official document of the United States Patent Office not subject to copyright) source
    W. D. Balcom's coffee cleaning apparatus, US patent No. 957,138, sheet 1William D. Balcom, Oberlin; United States Patent Office, Washington · filed June 21, 1909, issued May 3, 1910, US patent 957,138 (2 sheets), sheet 1Public domain (plate from a US patent, official document of the United States Patent Office not subject to copyright) source
    Hiram Stevens Maxim's coffee treating apparatus, US patent No. 701,750, sheet 1Hiram Stevens Maxim, London; United States Patent Office, Washington · filed January 14, 1901, issued June 3, 1902, US patent 701,750 (2 sheets), sheet 1Public domain (plate from a US patent, official document of the United States Patent Office not subject to copyright) source
    J. H. Grubb's coffee treating apparatus, US patent No. 155,300, drawing plateJ. H. Grubb; United States Patent Office, Washington · issued September 22, 1874, US patent 155,300, single drawing sheetPublic domain (plate from a US patent, official document of the United States Patent Office not subject to copyright) source
    Theodore C. Miller's coffee-making apparatus, Brooklyn, US patent No. 1,767,544Theodore C. Miller, Brooklyn (New York); United States Patent Office, Washington · filed August 8, 1928, issued June 24, 1930, US patent 1,767,544, single drawing sheetPublic domain (plate from a US patent, official document of the United States Patent Office not subject to copyright) source
    Early apparatus, European and AmericanWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 632Public domain source
    Plated dishes set on the pass of a restaurant kitchenLeo Sacchi · February 23, 2023Pexels License (free, commercial use allowed) source
    Eight-cylinder gas roasting shopWilliam H. Ukers, All About Coffee (New York, 1922) · photograph from the 1922 edition, p. 389Public domain source
    At the club of White's Coffee House, 1733, after HogarthWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 588Public domain source
    Fermentation and washing tanks on a São Paulo fazenda, page from All About CoffeeWilliam H. Ukers, All About Coffee, The Tea and Coffee Trade Journal Company, New York, 1922 · 1922, page 260Public domain (work published in the United States in 1922, copyright expired) source
    Laboratory balance to the hundredth of a gramEl CarlosCC BY 3.0 source
    Aquarium water test stripsR. Henrik Nilsson · 2026CC BY 4.0 source
    Glass airlock on the bung of a wine barrelMarco Daniele · 2010-05-29CC BY-SA 3.0 source
    Lagoon basin of the Ruai sewage treatment plant, in NairobiSuSanA Secretariat · 2011CC BY 2.0 source
    Cherry receiving basin in a washing stationHannoversche KaffeemanufakturPexels License source
    Receiving basin filled with cherriesHannoversche KaffeemanufakturPexels License source
    Washing basins of a processing station in KenyaDaniel Case · 2025-08-10CC BY-SA 4.0 source
    Battery of Carter drawer-type roasters in an old American plantWilliam H. Ukers, All About Coffee (New York, 1922) · photograph from the 1922 edition, p. 628Public domain source
    Benjamin Green Arnold, first president of the New York Coffee ExchangeWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 517Public domain source
    Sodium bicarbonate, one of the salts in the published recipesThavox · 2008Public domain source
    Plastic fermentation jug closed with an airlockKVDP · 2008-07-16Public domain source
    Layered milk drink in a double-wall glassJames DollinPexels License source
    Blanke roasted coffee tin, 1904 ExpositionMissouri History Museum, St. Louis · 1904Public domain source
    Henri Christiaens tin, raw and roasted coffees, BrusselsPrivate collection of antique tins; photograph Alf van Beem · early 20th centuryCC0 source
    Hand-labeled green coffee sample boxesFoxPexels License source
    Bowls lined up in front of the coffee packets, before a tasting session in Ystad, Sweden, in 2024Jonn Leffmann · 2024CC BY 4.0 source
    Branch of Coffea arabica in fruitWilliam H. Ukers, All About Coffee (New York, 1922), photographs The Tea and Coffee Trade Journal · 1909 photograph, p. 141Public domain source
    Achille Gaggia patent No. 2,898,844, coffee brewing machine, 1959Giovanni Achille Gaggia, Milan; US patent No. 2,898,844, “Machines for Infusing Coffee and Like Liquid Extracts”, United States Patent Office, Washington, 1959 · filed March 9, 1956, issued August 11, 1959, sheet 1 of 7Public domain (plate from a US patent, official document not subject to copyright) source
    US patent of Luigi Bezzera No. 726,793, coffee-making machine, 1903Luigi Bezzera, Milan; US patent No. 726,793, “Coffee Making Machine”, United States Patent Office, Washington, 1903; plate lithographed by The Norris Peters Co., Washington · filed June 10, 1902, issued April 28, 1903, sheet 1 of 2Public domain (plate from a US patent, official document not subject to copyright) source
    US patent No. 897,763 of Meyer, Roselius and Wimmer, treatment of coffee, 1908Johann Friedrich Meyer Jr., Ludwig Roselius and Karl Wimmer, of Bremen; US patent No. 897,763, “Treatment of Coffee”, United States Patent Office, Washington · filed May 4, 1906, issued September 1, 1908Public domain (official document of the US patent office) source
    US patent No. 897,840 of Meyer, Roselius and Wimmer, extraction of caffeine, 1908Johann Friedrich Meyer Jr., Ludwig Roselius and Karl Wimmer, of Bremen; US patent No. 897,840, United States Patent Office, Washington · issued September 1, 1908Public domain (official document of the US patent office) source
    Charles Morgan patent No. 461,784, coffee mill, 1891Charles Morgan; US patent No. 461,784, “Coffee Mill”, United States Patent Office, Washington, 1891; plate lithographed by N. Peters, Washington · issued October 20, 1891Public domain (plate from a US patent, official document not subject to copyright) source
    Edwin L. Henington patent No. 232,714, coffee pulper and separator, 1880Edwin L. Henington; US patent No. 232,714, “Coffee Pulper and Separator”, United States Patent Office, Washington, 1880; plate lithographed by N. Peters, Washington · issued September 28, 1880Public domain (plate from a US patent, official document not subject to copyright) source
    Jabez Burns patent No. 241,295, gas-heated roaster, 1881Jabez Burns, Brooklyn, New York, assignor to William Durbrow; US patent No. 241,295, “Coffee-Roaster”, United States Patent Office, Washington, 1881; plate lithographed by N. Peters, Washington · filed October 21, 1880, issued May 10, 1881Public domain (plate from a US patent, official document not subject to copyright) source
    Jabez Burns patent No. 44,704, roaster, sheet 1: the machine in sectionJabez Burns, New York; US patent No. 44,704, “Coffee Roaster”, United States Patent Office, Washington, 1864; plate lithographed by N. Peters, Washington · issued December 18, 1864, sheet 1 of 2Public domain (plate from a US patent, official document not subject to copyright) source
    Jabez Burns patent No. 44,704, roaster, sheet 2: the inner double helixJabez Burns, New York; US patent No. 44,704, “Coffee Roaster”, United States Patent Office, Washington, 1864; plate lithographed by N. Peters, Washington · issued December 18, 1864, sheet 2 of 2Public domain (plate from a US patent, official document not subject to copyright) source
    Fritsch Pulverisette 14 centrifugal millFight&Bite · 2009 · photograph, Wikimedia CommonsCC BY-SA 4.0 source
    Compressed spent coffee grounds logs from Bio-bean, on displayVernon Chan · 2017CC BY 2.0 source
    Button's Coffee House, Great Russell StreetWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 84Public domain source
    Women drinking coffee, tea and chocolate, 1707 frontispieceAnonymous frontispiece by Daniel Duncan, Von dem Missbrauch heisser und hitziger Speisen und Geträncke, sonderlich aber des Caffes, Schockolate und Thees, German translation, 1707; Wellcome Collection, London, EPB/A/21186, image L0016397 · 1707Public domain (Public Domain Mark declared on the Wellcome record; the reproduction relayed by Wikimedia Commons still carries Wellcome Images' former CC BY 4.0 notice, which is credited out of caution) source
    Bedouins preparing coffee in the sandWillem van de Poll (1895-1970); Nationaal Archief, The Hague · 1960CC0 source
    Roasted coffee from the island of Fogo, in 2012Ji-Elle · 2012CC BY-SA 3.0 source
    Bulk parchment coffee in a wooden hopperField photograph, Baja Verapaz, Guatemala · February 3, 2026Own collection
    Parchment coffee drying on a tarp in a street in Maubisse, in 2011David Stanley · 2011CC BY 2.0 source
    Coffee spread out in the sun to dry at the market of Pyin Oo Lwin, in 2018Myrmux · 2018CC BY-SA 4.0 source
    Ground coffee on a market stall, in a basin and an enameled bowl, in 2025Lucia236, Wiki Loves Africa 2025 · 2025CC BY-SA 4.0 source
    Coffee raked in lines on a drying patioField photograph, Baja Verapaz, Guatemala · February 3, 2026Own collection
    Coffee raked on the drying yard of a plantation in El Salvador, bags loaded on a cart, early 20th century (uncertain date)State Government Photographer, History Trust of South Australia · early 20th century, uncertain dateCC0 source
    Green coffee in Kpalimé, in 2025Alfrednadjere · 2025CC BY-SA 4.0 source
    Cafeeiro Sul de Minas Gerais 02.jpgErnani Zimmermann Viana · 2016-10-14 09:36:50CC BY-SA 4.0 source
    Coffee plant at Curimagua, in the Sierra de San Luis (Falcón State), in 2014Juan Carlo Castillo Ortega · 2014CC BY-SA 3.0 source
    Coffee plant in the village of Dulalthok, Kavrepalanchok district, in 2014Krish Dulal · 2014CC BY-SA 3.0 source
    Coffee plants laden with cherries by the roadside at Maubisse, in 2002J. Patrick Fischer · 2002CC BY-SA 3.0 source
    Coffee plants laden with green cherries on the Bolovens Plateau, in 2018Christophe95 · 2018CC BY-SA 4.0 source
    Three-year-old coffee plants in flower in Panama, photograph published by William H. Ukers in 1922William H. Ukers, All About Coffee, 1922 · 1922Public domain source
    Six-year-old excelsa coffee plants shaded by Cassia spectabilis, Boukoko station, 1950sBoukoko station, Institut national d'agronomie coloniale, BnF (Gallica) · 1950sPublic domain source
    Niaouli coffee plants shaded by Leucaena, at Tové, in 1929André Fontaine, BnF (Gallica) · 1929Public domain source
    Coffee plantation as far as the eye can see under a cloudless skyField photograph, Brazil · 2026Own collection
    Coffee plantation in front of the line of volcanoesField photographOwn collection
    Terraced coffee plantation on the hillsideField photographOwn collection
    Coffee plantation planted in straight rows to the horizon, on red earthField photograph, Brazil · 2026Own collection
    Electric drip coffee maker on a countertop in a retro kitchenJackie A · April 15, 2026Pexels License (free, commercial use allowed) source
    Viennese coffee pot, 1830, Metropolitan MuseumWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 609Public domain source
    Albert Rutenick's filter coffee pot, US patent No. 272,481Albert Rutenick, New York; United States Patent Office, Washington · issued February 20, 1883, US patent 272,481, single drawing sheetPublic domain (plate from a US patent, official document of the United States Patent Office not subject to copyright) source
    18th-century silver coffee potsWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 605Public domain source
    Belgian, Russian and French pewter coffee potsWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 622Public domain source
    Coffee pots by American silversmiths, including Paul RevereWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 613Public domain source
    Earthenware and porcelain coffee pots, from the eighteenth to the twentieth centuryWilliam H. Ukers, All About Coffee (New York, 1922) · illustration from the 1922 edition, p. 606Public domain source
    Coffee pots and apparatus, plate from the chapter on the evolution of utensilsWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 650Public domain source
    Cafeto arábico (Coffea arabica), Parque Nacional de Lokobe, Nosy Be, Madagascar, 2025-09-21, DD 24.jpgDiego Delso · 2025-09-21 10:49:18CC BY-SA 4.0 source
    Caffé Caffé, the itinerant coffee seller of the Cries of ParisAnne Claude Philippe de Tubières, comte de Caylus, etching finished with the burin by Pierre Étienne Moitte after Edme Bouchardon, Études prises dans le bas peuple ou les Cris de Paris, fifth series, 1746; The Metropolitan Museum of Art, New York, 53.600.588(49), Harris Brisbane Dick Fund · 1746Public domain (CC0, Met Open Access) source
    Bogota coffee, green and roasted, seen under the microscope, plate from All About CoffeeWilliam H. Ukers, All About Coffee, The Tea and Coffee Trade Journal Company, New York, 1922 · 1922, page 154Public domain (work published in the United States in 1922, copyright expired) source
    Roadside café in Toyohashi, Naito Coffee signIMHHPexels License source
    Parchment coffee flowing through handsDaniel Case · 2025-08-10CC BY-SA 4.0 source
    Parchment coffee on a drying rackDaniel Case · 2025-08-10CC BY-SA 4.0 source
    South Indian filter coffee served in its davara, froth overflowingBaljinder SinghPexels License source
    Ground coffee seen under the microscope, page from the chemistry chapter of All About CoffeeWilliam H. Ukers, All About Coffee, The Tea and Coffee Trade Journal Company, New York, 1922; chemistry chapter written by Charles W. Trigg · 1922, page 167Public domain (work published in the United States in 1922, copyright expired) source
    Coffee poured into several mismatched cups on a wooden tableLucas Andrade · March 15, 2024Pexels License (free, commercial use allowed) source
    Green coffee stored on the docks of Le Havre, FranceWilliam H. Ukers, All About Coffee (New York, 1922) · photograph from the 1922 edition, p. 328Public domain source
    Café-concert des Ambassadeurs, the sword swallowerJules Chéret (1836-1932); Bibliothèque nationale de France · 1876Public domain source
    Coffee plant laden with fruit despite rust, 1909 photographUnidentified photographer, agronomic collection digitized by the Bibliothèque nationale de France · 1909Public domain source
    Coffea excelsa coffee plant from Bangelan, 1935Roland Portères, photographer; Bibliothèque nationale de France · 1935Public domain source
    Coffea robusta coffee plant in Africa, 1930 photographP. Pascalet, photographer; Bibliothèque nationale de France · 1930Public domain source
    Coffea robusta coffee plant in Java, 1930 photographP. Pascalet, photographer; Bibliothèque nationale de France · 1930Public domain source
    Coffee plant in flower and fruit, watercolorAnonymous artist, watercolor on paper, c. 1823; Wellcome Collection, London, iconographic reference V0043506EL · c. 1823Public domain (Public Domain Mark, declared on the Wellcome record) source
    Coffee plant in fruit, watercolor companion to the previous oneAnonymous artist, watercolor on paper, c. 1823; Wellcome Collection, London, iconographic reference V0043506ER · c. 1823Public domain (Public Domain Mark, declared on the Wellcome record) source
    Coffee plants of the Bourbon variety, French IndochinaWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 238Public domain source
    Six-year-old Liberian coffee plants, 1920 press photographMeurisse press agency; Bibliothèque nationale de France · July 7, 1920Public domain source
    Thirty-year-old coffee plants, Esperanza, HuatuscoWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 221Public domain source
    Coffee plants in flower in front of a planter's bungalow, MysoreWilliam H. Ukers, All About Coffee (New York, 1922), photographs The Tea and Coffee Trade Journal · color photograph c. 1909Public domain source
    Terraced coffee plants at Attara, near Manakha, Yemen, 1893Plate from Walter Burton Harris, A Journey through the Yemen, and some general remarks upon that country, Edinburgh and London, 1893, p. 29; digitized copy from the British Library, shelfmark HMNTS 10076.eee.25 · 1893Public domain (1893 work; British Library, Mechanical Curator collection) source
    Robusta coffee plants and pepper vinesTimothy A. Gonsalves · 2024-02-07CC BY-SA 4.0 source
    Wild coffee plants of Kaffa, near Addis AbabaWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 231Public domain source
    Washing channel loaded with cherries in a wet-process facility at Doi Chaang, in 2014LannaPhoto · 2014CC BY-SA 4.0 source
    Map of the range of Coffea stenophyllaFiver, der Hellseher · January 23, 2022CC BY-SA 4.0 source
    Map of the area affected by the coffee plant disease, August 1887Emilio Augusto Goeldi, “Relatorio sobre a molestia do cafeeiro na provincia do Rio de Janeiro”, Rio de Janeiro, Imprensa Nacional, 1887, offprint from vol. VIII of the Archivos do Museu Nacional; plates engraved by A. Lallemant, Museu Nacional · August 1887, folding mapPublic domain source
    Map of the London coffeehouses before the fire of 1748William H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 76Public domain source
    Advertising card for Schotten's Oura Java coffeeMissouri History Museum, St. Louis · c. 1905Public domain source
    Cherries in the water of a sorting basin at Doi Chaang, Chiang Rai province, in 2014LannaPhoto · 2014CC BY-SA 4.0 source
    Whole dried coffee cherries, before hulling, in 2025Giovanni Damandji, Wiki Loves Africa 2025 · 2025CC BY-SA 4.0 source
    Canephora cherries ripeningTimothy A. Gonsalves · 2024-02-04CC BY-SA 4.0 source
    Coffea racemosa cherriesTon Rulkens · December 6, 2013CC BY-SA 2.0 source
    Cherries entering the hopper of a pulperChristian BolañosPexels License source
    Whole cherries drying on a patioField photograph, Antigua region, Sacatepéquez, Guatemala · February 4, 2026Own collection
    Harvested cherries in bulk on the screening grid of a machineField photograph, Brazil · 2026Own collection
    Cherries drying on raised beds, UgandaSpeak Media UgandaPexels License source
    Copper cezve and porcelain cup on a trayAsumaaniPexels License source
    Brass cezve and empty cup on a wooden trayDenisse VillarPexels License source
    Cezve sunk into hot sand, the coffee risingMutecevvilPexels License source
    Loading bags of coffee aboard a shipWilliam H. Ukers, All About Coffee (New York, 1922) · photograph from the 1922 edition, p. 313Public domain source
    José Marcelino Urgellés's coffee cherry processing chain, US patent No. 1,038,032, drawing plateJosé Marcelino Urgellés; United States Patent Office, Washington · filed December 11, 1911, issued September 10, 1912, US patent 1,038,032, single drawing sheetPublic domain (plate from a US patent, official document of the United States Patent Office not subject to copyright) source
    Private railway on a São Paulo fazendaWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 208Public domain source
    Large-rooted Magdeburg chicoryVilmorin-Andrieux & Cie, Les plantes potagères (Paris, 1904) · 1904Public domain source
    Drop in pH over 72 hours of fermentation, dry process and wet processRocha R.A.R., Cruz M.A.D.D. et al. · 2024CC BY 4.0 source
    Green scale Lecanium viride on a coffee leaf, Bingerville, 1932A. Mallamaire, botanist and photographer; Bibliothèque nationale de France · 1932Public domain source
    Coffea arabica 'bourbon pointu' from Sliti farm in Reunion island.jpgAdrienChatenay · 2017-04-02CC BY-SA 4.0 source
    Coffea arabica: leaves, flowers and fruits, painted from life by M. E. EatonWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 8Public domain source
    Coffea arabica flowers.JPGB.navez · 2007-12-27CC BY-SA 4.0 source
    Coffea arabica L., plate 106 of Köhler's Medizinal-Pflanzen (Gera, 1887): twig, flowers, section of the flower, fruit, section of the fruit, seedsFranz Eugen Köhler (ed.), lithograph · 1887Public domain source
    Coffea arabica, plate 1303 of Curtis's Botanical MagazineDrawn by Sydenham Teast Edwards, engraved by Francis Sansom, published by Thomas Curtis, St George's Crescent, July 1, 1810; Curtis's Botanical Magazine, volume 32, plate 1303, text by John Sims; Harvard University copy · 1810Public domain source
    Coffea arabica, plate from Blanco's Flora de FilipinasFrancisco Manuel Blanco, “Flora de Filipinas”, large edition, atlas I, Manila · 1880-1883Public domain source
    Coffea canephora berries.JPGKsd5 · 2009-07-12CC0 source
    Eighteen-month-old Coffea Kouilou in flowerWilliam H. Ukers, All About Coffee (New York, 1922), photographs The Tea and Coffee Trade Journal · p. 147Public domain source
    Coffea liberica (5597836927).jpgDinesh Valke from Thane, India · 2011-03-31 14:51CC BY-SA 2.0 source
    Coffea liberica in plantation at Bangelan, Java, 1931P. Pascalet, photographer; Bibliothèque nationale de France · 1931Public domain source
    Coffea stenophylla kz01.jpgKrzysztof Ziarnek, Kenraiz · 2019-12-13 11:36:09CC BY-SA 4.0 source
    Coffea travancorensis, wild coffee plant of the islandGeorge de Alwis (drawing), Henry Trimen, Biodiversity Heritage Library · 1895Public domain source
    Coffea zanguebariae, the species of Ibo coffeeRalph Holt Cheney, Internet Archive digitization · 1925Public domain (no known copyright restriction; book published in New York in 1925) source
    Coffee berries in Hacienda Guayabal, Colombia.jpgBernard Gagnon · 2020-01-23CC BY-SA 4.0 source
    Coffee berry sorting process, near Hawassa.jpgNiels Van Iperen · 2017-01-26 02:37:48CC BY-SA 4.0 source
    Coffee seedlings puerto rico.jpgUSDA · 2013-12-11Public domain source
    John Ashcroft's coffee processing chest, US patent No. 113,832, sheet 1John Ashcroft; United States Patent Office, Washington · issued April 18, 1871, US patent 113,832 (2 sheets), sheet 1Public domain (plate from a US patent, official document of the United States Patent Office not subject to copyright) source
    Collection of Ottoman zarfsTitit (Wikimedia Commons), Adnan Ege Kutay collection · pieces of the 18th and 19th centuriesCC BY-SA 4.0 source
    Comparison of Coffea racemosa, liberica and arabica beansLeClair Organics · September 18, 2019CC BY-SA 4.0 source
    Counter laden with a neighborhood café's sugar and coffee tinsLokman Sevim · January 17, 2023Pexels License (free, commercial use allowed) source
    Counter of a minimalist café seen from the entrance of the roomAmar Preciado · July 25, 2024Pexels License (free, commercial use allowed) source
    Packing and transport of coffee at AdenWilliam H. Ukers, All About Coffee (New York, 1922) · photograph from the 1922 edition, p. 311Public domain source
    Checking a handful of beans at the drum outletRaphael LoquellanoPexels License source
    Screenshot of the Barista Pocket toolApplication supplied by the site's author · 2026Screenshot of the site itself
    Screenshot of the coffee quiz toolApplication supplied by the site's author · 2026Screenshot of the site itself
    Screenshot of the Auto machine toolApplication supplied by the site's author · 2026Screenshot of the site itself
    Screenshot of the Mission and Constraint toolApplication supplied by the site's author · 2026Screenshot of the site itself
    Screenshot of the sitePXL Roasters · 2026Screenshot of the site itself
    Screenshot of the sitePXL Roasters · 2026Screenshot of the site itself
    Screenshot of the sitePXL Roasters · 2026Screenshot of the site itself
    Grind color minute by minute for seven roast profilesAnokye-Bempah L., Styczynski T. et al. · 2025CC BY 4.0 source
    Section of a coffee cherry: exocarp, mesocarp, pectin layer, endocarp, integument and endospermY tambe, vectorized by Chabacano; French version supplied by the site's author · original 2004, vectorization 2007CC BY-SA 3.0 (derivative work under the same license) source
    Cross section of a coffee cherry and the names of its coveringsBastian F., Hutabarat O.S. et al. · 2021CC BY 4.0 source
    Tasting cups and spoons on the cupping tableAlinaskazkaPexels License source
    Paved courtyard of a coffee farm at the foot of the mountains, in Venezuela, in 2007 (exact location not specified by the author)Matthias Kirsch · 2007CC BY-SA 2.0 source
    Citric acid crystals under the microscope in polarized light, magnified 200 timesJan Homann · 2006Public domain source
    Picking and bagging in BrazilWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 177Public domain source
    Picking and transport in the fields, São PauloWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 209Public domain source
    Picking on a plantation in BogotaWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 211Public domain source
    Picking on a plantation in North QueenslandWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 239Public domain source
    Picker in a row of coffee plants1500m CoffeePexels License source
    Coffee pickers in the interior of São Paulo, BrazilUnidentified photographer; Frank and Frances Carpenter Collection, Library of Congress, Prints and Photographs Division, digital ID cph.3c04097; the record reproduces the old deposit notice “Copyright by E. M. Newman” and states that no publication restrictions are known · between 1900 and 1923Public domain (work published in the United States before 1929; Library of Congress: no known restrictions on publication) source
    Spoons and bowls during a tasting sessionAlina SkazkaPexels License source
    Shade-grown cultivation, Urban estate, IndiaWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 228Public domain source
    Shade-grown cultivation, Puerto RicoWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 201Public domain source
    Closed fermentation tank topped with a bubbler airlockShermozle · 2006-01-08CC BY-SA 3.0 source
    Lawrence K. Watrous's vertical green coffee treatment tank, US patent No. 1,498,410, drawing plateLawrence K. Watrous, Minneapolis; United States Patent Office, Washington · filed September 19, 1922, issued June 17, 1924, US patent 1,498,410, single drawing sheetPublic domain (plate from a US patent, official document of the United States Patent Office not subject to copyright) source
    Stainless-steel fermentation tanks in a row with valves and pressure gaugesDrew Cuddy · 2010-06-03CC BY-SA 2.0 source
    Fermentation and washing tanks on a São Paulo fazendaWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 260Public domain source
    Das Coffe-Haus, the German café of 1711Caspar Luyken, etching for Abraham a Sancta Clara, Etwas für Alle, second part (1711); Rijksmuseum, Amsterdam, RP-P-1896-A-19368-1616 · 1711CC0 (Rijksmuseum) source
    Clearing land to plant coffee in Sumatra, in 1918-1919 (KITLV collection)Unknown photographer, KITLV collection (Leiden University library) · 1918-1919CC BY 4.0 source
    Spoon tasting over bowls of coffeeMasu RodriguezPexels License source
    Pulper and washing tank on a farm in TanzaniaHarald Ulver · 2024CC BY-SA 4.0 source
    Packaged coffees made famous by advertisingWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 430Public domain source
    Smokers in a Turkish café listen to the news brought by a courierJoseph Nash, 1843 lithograph after the drawing by David Wilkie made in Constantinople in 1840; Wellcome Collection, London, V0019283 · 1843, after a drawing of 1840Public domain (lithograph published in 1843; Joseph Nash died in 1878, David Wilkie died in 1841) source
    Glasses set on a map of the originsЕвгений ШухманPexels License source
    Workshop drawing of a Tiffany coffee pot, model 8473Tiffany & Co.; Metropolitan Museum of Art · c. 1889CC0 source
    Patent drawings of old French coffee potsWilliam H. Ukers, All About Coffee (New York, 1922) · illustration from the 1922 edition, p. 624Public domain source
    Two of the blackboards of the Coffee ExchangeWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 331Public domain source
    Two women drying cherriesPHILIP ASEDRI DRADRIO · 2017-09-16CC BY-SA 4.0 source
    Two “The San Franciscan” roasters installed side by sideVisitor7 · 2013-03-06CC BY-SA 3.0 source
    Two double-wall glasses filled with black coffeeHafize BalciPexels License source
    In front of an Ottoman caféUnidentified photographer; British Museum, London · c. 1910Public domain source
    Kissaten storefront in Japan, signs “喫茶” and “COFFEE”Keisuke IwasawaPexels License source
    Different types of coffee containers in 1922William H. Ukers, All About Coffee (New York, 1922) · illustration from the 1922 edition, p. 411Public domain source
    Disappearance of sugars and appearance of acids and alcohols during 96 hours of fermentationSilva L.C.F., Pereira P.V.R. et al. · 2024CC BY 4.0 source
    Fermentation setup in closed jugs, whole coffee and pulped coffeeRocha R.A.R., Cruz M.A.D.D. et al. · 2024CC BY 4.0 source
    Outdoor coffee and tea vending machineVladislav Likhomanov · February 16, 2021Pexels License (free, commercial use allowed) source
    Coffee estate in Antioquia, with its windbreaksWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 203Public domain source
    Coffee estate in the mountains of Costa RicaWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 226Public domain source
    One-year-old robusta estate, west coast of SumatraWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 145Public domain source
    Doses of beans on the scale of a roasting stationFoxPexels License source
    Unloading by hoist at New OrleansWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 324Public domain source
    Unloading coffee from a steamer arriving from Central AmericaWilliam H. Ukers, All About Coffee (New York, 1922) · photograph from the 1922 edition, p. 326Public domain source
    Unloading Java coffee from a sailing ship at BrooklynWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 311Public domain source
    Unloading under the covered sheds of the New York Dock CompanyWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 319Public domain source
    Kensett Champney's coffee huller, Senahú (Guatemala), US patent No. 773,544, drawing plateKensett Champney, Senahú (Guatemala); United States Patent Office, Washington · issued November 1, 1904, US patent 773,544, single drawing sheetPublic domain (plate from a US patent, official document of the United States Patent Office not subject to copyright) source
    Tasting in a Costa Rican roasteryEric T Gunther · 2012-03-12CC BY-SA 3.0 source
    Old parchment remover driven by an ox-powered whim, VenezuelaWilliam H. Ukers, All About Coffee (New York, 1922) · illustration from the 1922 edition, p. 263Public domain source
    Comparative advertising expenditure of coffee and substitutesWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 440Public domain source
    Pulping of cherries at a Ugandan stationErinamukuta · 2014-10-12CC BY-SA 4.0 source
    Pulper and washing tank in TanzaniaHarald Ulver · 2024-08-05CC BY-SA 4.0 source
    Tandem pulper of English makeWilliam H. Ukers, All About Coffee (New York, 1922) · illustration from the 1922 edition, p. 250Public domain source
    J. C. H. Grant's coffee pulper, US patent No. 1,496,265, drawing plateJosceline Charles Herbert Grant; United States Patent Office, Washington · filed June 9, 1922, issued June 3, 1924, US patent 1,496,265, single drawing sheetPublic domain (plate from a US patent, official document of the United States Patent Office not subject to copyright) source
    R. T. Richards's coffee pulper, Honolulu, US patent No. 620,053, sheet 1R. T. Richards, Honolulu (Hawaii); United States Patent Office, Washington · issued February 21, 1899, US patent 620,053 (2 sheets), sheet 1Public domain (plate from a US patent, official document of the United States Patent Office not subject to copyright) source
    Richard Bahmann's coffee pulper, US patent No. 991,413, sheet 1Richard Bahmann; United States Patent Office, Washington · filed October 10, 1906, issued May 2, 1911, US patent 991,413 (3 sheets), sheet 1Public domain (plate from a US patent, official document of the United States Patent Office not subject to copyright) source
    Richard Bahmann's coffee pulper, US patent No. 991,413, sheet 3: the drum and its jacketsRichard Bahmann; United States Patent Office, Washington · filed October 10, 1906, issued May 2, 1911, US patent 991,413 (3 sheets), sheet 3Public domain (plate from a US patent, official document of the United States Patent Office not subject to copyright) source
    Details of coffee germination, drawing by Ch. KmochWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 133Public domain source
    Samples of green and roasted coffee prepared for a tastingUC Davis College of Engineering · 2016CC BY 2.0 source
    Flakes of limescale detached from a kettleAlexander Davronov · 2020CC BY-SA 4.0 source
    Sliding pizza dough into a professional ovenSergei Starostin · November 3, 2024Pexels License (free, commercial use allowed) source
    Bagging ground coffee with a scoop, on a counter scaleBetül ÜstünPexels License source
    Lambert Économique charcoal-fired roasting setWilliam H. Ukers, All About Coffee (New York, 1922) · illustration from the 1922 edition, p. 397Public domain source
    Green coffee warehouse, stacked jute bagsField photograph, Baja Verapaz, Guatemala · February 2, 2026Own collection
    Lot warehouse, white and red bags stackedField photograph, Antigua region, Sacatepéquez, Guatemala · February 4, 2026Own collection
    Entrance of a finca in the Guatemalan highlandsWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 218Public domain source
    Espresso served in a glass on a porcelain saucerAmelia HallsworthPexels License source
    Underside of a coffee leaf covered in orange rust pustulesMariño Y.A., Buitrago D.P. et al. · 2026CC BY 4.0 source
    Women drinking coffeeJean-Baptiste Vanmour (1671-1737); Google Art Project · first half of the 18th centuryPublic domain source
    Women cleaning Mocha coffee in a warehouse in AdenWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 267Public domain source
    Leaf affected by orange rust and urediniospores of Hemileia vastatrix under the microscopeRamírez-Camejo L.A., Keith L.M. et al. · 2022CC BY 4.0 source
    Shipping tracking sheet placed on boxes marked fragileTima Miroshnichenko · December 12, 2020Pexels License (free, commercial use allowed) source
    Coffee leaves affected by orange rust, Kiambu, KenyaDaniel Case · August 10, 2025CC BY-SA 4.0 source
    Turkish girl taking coffee on the sofaAfter Jean-Baptiste Vanmour; Metropolitan Museum of Art · 1714-1715CC0 source
    Arab coffee finjanPhotograph published on Flickr under CC BY 2.0 license · 2012CC BY 2.0 source
    Coffee flower and fruit, photograph by W. L. H. Skeen & Co., CeylonW. L. H. Skeen & Co., Colombo; Wellcome Collection, London · late nineteenth centuryCC BY 4.0 source
    Pinkish flowers of a local arabica cultivar, Bukidnon province, Mindanao, in 2024Obsidian Soul · 2024CC0 source
    Flowering of Coffea canephora in Sri Lanka, in 2020Deshan Herath · 2020CC BY-SA 4.0 source
    Flowering of Coffea robusta at Bingerville, Côte d'Ivoire, 1934Roland Portères, photographer; Bibliothèque nationale de France · 1934Public domain source
    Flowering of Coffea stenophylla at Bingerville, Côte d'Ivoire, 1934Roland Portères, photographer; Bibliothèque nationale de France · 1934Public domain source
    Operation of an Italian fast coffee machineWilliam H. Ukers, All About Coffee (New York, 1922) · illustration from the 1922 edition, p. 652Public domain source
    Mountain forest near Sérédou, seat of the coffee research station, at the northern edge of the Ziama, in 2016Yakoo1986 · 2016CC BY-SA 4.0 source
    Formula of caffeine and its place in the purine group, with the alkaloid's solubility table, page from All About CoffeeWilliam H. Ukers, All About Coffee, The Tea and Coffee Trade Journal Company, New York, 1922; chemistry chapter written by Charles W. Trigg · 1922, page 160Public domain (work published in the United States in 1922, copyright expired) source
    Heavy fruiting of a Coffea robusta in JavaWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 214Public domain source
    Fruiting of an eight-year-old robusta coffee plant, Malang, JavaUnidentified photographer, agronomic collection digitized by the Bibliothèque nationale de France · c. 1900Public domain source
    Ribbed green fruits of a native coffee plant from northern Mozambique, at Chiure (Cabo Delgado), in 2013Ton Rulkens · 2013CC BY-SA 4.0 source
    Green coffee fruits and glossy foliageVarun VenugopalPexels License source
    Puck of spent grounds knocked out of the portafilter over the binKampus ProductionPexels License source
    Germination of Hemileia vastatrix urediniospores under the microscopeCarlos Roberto Carvalho, Ronaldo C. Fernandes, Guilherme Mendes Almeida Carvalho, Robert W. Barreto, Harry C. Evans · November 2011CC BY 2.5 source
    Takeaway cup set on a curbSuzy HazelwoodPexels License source
    Paper cups and lids on the countertop of a caféEl DisculpePexels License source
    Metal tumblers and saucers of Indian filter coffeeAkshata BabladPexels License source
    Pinxton porcelain coffee cansDerby Museum and Art Gallery; photograph Roger (Derby) · c. 1805CC BY-SA 2.0 source
    Beans stopped at different moments of roasting, from green to very dark brownNachotacl · 2023CC BY-SA 4.0 source
    Robusta coffee beans, photographic plateUnidentified photographer, agronomic collection digitized by the Bibliothèque nationale de France · c. 1900Public domain source
    Rice grains covered with koji myceliumForrest O. · 2008-07-05CC BY-SA 2.0 source
    Old coffee substitute packaging, village grocery of Tuuri, FinlandTiia Monto (Wikimedia Commons) · 2018 photographCC BY-SA 3.0 source
    Beans spread in the sun on a drying yard at Doi Chaang, in 2014LannaPhoto · 2014CC BY-SA 4.0 source
    Green Gayo beans from three processes: honey, wine and naturalYulia M., Analianasari A. et al. · 2023CC BY 4.0 source
    Large Broekema shop tin, coffee and teaPrivate collection of antique tins; photograph Alf van Beem · early 20th centuryCC0 source
    Large coffee urns, Duparquet and Still machineWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 707Public domain source
    Group of cylinder pulpers of English makeWilliam H. Ukers, All About Coffee (New York, 1922) · illustration from the 1922 edition, p. 247Public domain source
    Group head and drip tray of a machine covered with groundsThirdmanPexels License source
    Hemileia vastatrix - coffee leaf rust.jpgSmartse · 2011-07-15CC BY-SA 3.0 source
    Hemileia vastatrix: underside of an affected leafWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 153Public domain source
    Hoisting coffee in the warehouses next to the Brooklyn docksWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 320Public domain source
    Men dancing in a coffeehouseThomas Rowlandson and Charles Grignion, for The Expedition of Humphry Clinker (London, 1793); Metropolitan Museum of Art · 1793CC0 source
    Men and children smoking in a Turkish caféJoseph Nash after David Wilkie; Wellcome Collection, London · 1840CC BY 4.0 source
    Manthey-Zorn rapid infuser-dispenserWilliam H. Ukers, All About Coffee (New York, 1922) · photograph from the 1922 edition, p. 653Public domain source
    Inserting a coffee capsule into a pod machinethiago japyassu · January 4, 2023Pexels License (free, commercial use allowed) source
    German gas installation, Ideal-Rapid machinesWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 386Public domain source
    English gas installation, Morewood machinesWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 641Public domain source
    English gas roasting installation, four machinesWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 385Public domain source
    LEOGAP 2000 plate roasting installation, TchornomorskNnizhnik · 2019 · photograph, Wikimedia CommonsCC BY-SA 4.0 source
    French gas installation, Moderne machinesWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 387Public domain source
    Hydraulic coffee cleaning installation near Manizales and preparation of Colombian coffee, plate from All About CoffeeWilliam H. Ukers, All About Coffee, The Tea and Coffee Trade Journal Company, New York, 1922 · 1922, page 262, plate “Preparing Colombian coffee for the market”Public domain (work published in the United States in 1922, copyright expired) source
    Interior of a Turkish caffinet, early 19th centuryWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 665Public domain source
    Interior of a cleaning and grading warehouse in SantosWilliam H. Ukers, All About Coffee (New York, 1922) · photograph from the 1922 edition, p. 305Public domain source
    Interior of a coffee processing factory in East JavaWilliam H. Ukers, All About Coffee (New York, 1922) · photograph from the 1922 edition, p. 270Public domain source
    Interior of a coffee processing factory in Java, pulping machines and fermentation tanks, plate from All About CoffeeWilliam H. Ukers, All About Coffee, The Tea and Coffee Trade Journal Company, New York, 1922 · 1922, plate “Preparing Java coffee for the market”Public domain (work published in the United States in 1922, copyright expired) source
    Jebena and finjan of the Ethiopian ceremonyMiraethiopia (Wikimedia Commons) · 2024CC BY-SA 4.0 source
    Young coffee plant in its planting basinGeossegawa · 2025-03-18CC BY 4.0 source
    Young coffee seedlings in a nursery at Naudada, in 2019Hopingyousuf · 2019CC BY-SA 4.0 source
    Young coffee seedlings in bags in a nursery at Boquete, in 2018Aqutiv · 2018CC BY-SA 4.0 source
    John ArbuckleWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 523Public domain source
    Card players in a Viennese caféTheodor Zasche (1862-1922); watercolor, Dorotheum sale · before 1922Public domain source
    Kolschitzky, the “brother of the heart”, and the first café in ViennaWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 48Public domain source
    Napier's apparatus, 1841William H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 700Public domain source
    The roast test, with the paddleWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 394Public domain source
    The Hacienda Altamira, Venezuela, and its water conduitWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 212Public domain source
    The building of the New York Coffee and Sugar ExchangeWilliam H. Ukers, All About Coffee (New York, 1922) · photograph from the 1922 edition, p. 329Public domain source
    The Mavis Bank coffee factory, in the Blue Mountains, in 2008Elizabeth B. Thomsen · 2008CC BY-SA 4.0 source
    The historic Kaffee HAG factory in Bremen-WalleJürgen Howaldt · November 2017CC BY-SA 4.0 source
    The night coffee stall in LondonWalter George Mason, wood engraving after Henry Anelay, himself after a daguerreotype by Richard Beard, for Henry Mayhew, London Labour and the London Poor (London, 1851) · 1851Public domain source
    The coffee stall of the London streetsHenry Anelay and Walter George Mason, in Henry Mayhew, London Labour and the London Poor (1851) · 1851Public domain source
    The evolution of a cup of coffee: the operations that separate the seed from the cupWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · frontispiece platePublic domain source
    The coffee ring at the New York Coffee and Sugar ExchangeWilliam H. Ukers, All About Coffee (New York, 1922) · photograph from the 1922 edition, p. 330Public domain source
    Picking at Las Nubes, Guatemala, 1875Eadweard Muybridge, photographic campaign in Guatemala, 1875, albumen print from a glass negative, Metropolitan Museum of Art, New York, accession number 2005.100.781 · 1875Public domain (CC0, Open Access of the Metropolitan Museum) source
    The tasting spoon above the bowlsMasud AllahverdizadePexels License source
    The cultivation and preparation of mild coffeesWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 193Public domain source
    The coffee urn of the Green Dragon tavernWilliam H. Ukers, All About Coffee (New York, 1922) · illustration from the 1922 edition, p. 612Public domain source
    The great fair on the frozen Thames, 1683William H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 79Public domain source
    The Dakin roasting machine of 1848William H. Ukers, All About Coffee (New York, 1922) · illustration from the 1922 edition, p. 633Public domain source
    The enslaved labor force of a Brazilian coffee fazenda, c. 1885Marc Ferrez (1843-1923), c. 1885; reproduced in Bia Corrêa do Lago, Os fotógrafos do Império: a fotografia brasileira no Século XIX, Rio de Janeiro, Capivara, 2005 · c. 1885Public domain (author died in 1923) source
    The coffeehouse of JerusalemCarl Friedrich Heinrich Werner (1808-1894); Wellcome Collection, London · 1868CC BY 4.0 source
    The manor house of the La Isabelica coffee estate, near Santiago de Cuba, in 2008Sigi Knoll (Lagaly_de) · 2008CC BY-SA 3.0 source
    The circular stone mill where the dry bean was hulled, at La IsabelicaSigi Knoll (Lagaly_de) · 2008CC BY-SA 3.0 source
    The first advertisement for coffee, London, 1652, after the original in the British MuseumWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 55Public domain source
    The preparation of coffee in Central and South AmericaWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 249Public domain source
    The row of bowls on a cupping tableVisitor7 · 2013-03-24CC BY-SA 3.0 source
    The flavor wheel laid on the tableMaria OrlovaPexels License source
    The tasting session of a roasting laboratoryIndigo.udm · 2025-05-20CC BY 4.0 source
    The main spring of Barton Springs, in Texas, emerges from a fracture in the limestoneUSGS (United States Geological Survey)Public domain source
    The rotating table of a tasting laboratoryRpdecamps · 2008CC BY 3.0 source
    The rotating tasting table, three and a half feet in diameterWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 357Public domain source
    Pruning of the coffee plant in the State of São Paulo, colored postcardPostcard from the series As Grandes Culturas no Estado de S. Paulo, Santos, color series No. 532; Cartões Postais collection, Museu Paulista of the University of São Paulo, No. 1-03869; reproduction José Rosael and Hélio Nobre, Museu Paulista da USP · early 20th centuryPublic domain (old work, Museu Paulista license template PD-old) source
    The world coffee cup and the largest ship in the worldWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 275Public domain source
    The world coffee tower compared with the Eiffel Tower and the WoolworthWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 272Public domain source
    The brass drop door of a ProbatClinton WeaverPexels License source
    The lion's head of Button's, drawn by HogarthWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 80Public domain source
    Sign lantern “珈琲 COFFEE” under a paper parasol, KyotoJY LeePexels License source
    Washing the beans under running waterMichael BurrowsPexels License source
    Costa Rican vertical washer and McKinnon continuous-running horizontal washer, page from All About CoffeeWilliam H. Ukers, All About Coffee, The Tea and Coffee Trade Journal Company, New York, 1922 · 1922, page 251Public domain (work published in the United States in 1922, copyright expired) source
    A. A. Warner's patent for Landers, Frary and Clark, 1905William H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 648Public domain source
    The Greene and Burns patent, 1917William H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 652Public domain source
    The Caffè Gambrinus, NaplesNemo bis (Wikimedia Commons) · 2016CC BY-SA 3.0 source
    The Caffè Pedrocchi in Padua, the most beautiful café in the worldWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 599Public domain source
    The Richter café in Leipzig, 17th centuryWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 46Public domain source
    The host's coffee in a Muslim house, the DjowfWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 639Public domain source
    The Café de la Régence in ParisWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 81Public domain source
    The Café Procope in 1743, engraving by BosredonWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 2Public domain source
    Fazenda coffee is delivered to the commission agents' warehouses in RioWilliam H. Ukers, All About Coffee (New York, 1922) · photograph from the 1922 edition, p. 305Public domain source
    The Café des Mille Colonnes in 1811, engraving by BosredonWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 99Public domain source
    The French café in London, second half of the 18th centuryWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 89Public domain source
    The Café Heinrichhof, ViennaMoriz Jung (1885-1915), Wiener Werkstätte; Metropolitan Museum of Art · 1912CC0 source
    The Quincampoix café in Amsterdam during the stock market fever of 1720Anonymous from the United Provinces, etching and engraving from the series Het Groote Tafereel der Dwaasheid, 1720; Rijksmuseum, Amsterdam, RP-P-OB-83.514 · 1720CC0 (Rijksmuseum) source
    The Café Schrangl, on the Graben, in ViennaWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 672Public domain source
    Coffee under the steel sheds of New OrleansWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 325Public domain source
    The coffee plant and the six uses of coffee, lithographed plateAuthor not identified on the record; hand-colored lithograph, c. 1840; Wellcome Collection, London, iconographic reference V0044750 · c. 1840Public domain (Public Domain Mark, declared on the Wellcome record) source
    The coffee plant, line engraving by H. Burgh, c. 1726H. Burgh, burin engraving; Wellcome Collection, London · c. 1726CC BY 4.0 source
    The joint advertising committee of the coffee trade in the United StatesWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 447Public domain source
    The Spring Valley coffee estate near Badulla, c. 1890Unknown photographer, KITLV collection (Leiden University library) · c. 1890CC BY 4.0 source
    The Boekit Gompong estate, near Padang, west coast of SumatraWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 202Public domain source
    The Smout huller-polisherWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 254Public domain source
    Walker's original disc pulper, 1860William H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 246Public domain source
    The thin stream of water poured over the ChemexKübra Sorgit TavukçuPexels License source
    The thin stream of espresso into the graduated glassJames CollingtonPexels License source
    The Fort of Santo António on the island of Ibo, which gave its name to Ibo coffee, in 2009Rosino · 2009CC BY-SA 2.0 source
    Jonathan's Coffee House in Change AlleyAfter Jefferyes Hamett O'Neale; British Museum, London · 1763Public domain source
    The King's Arms, the first café in New York, opened in 1696William H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 116Public domain source
    The lever and thermometer of an Aug Olsen roasterVisitor7 · 2014-02-11CC BY-SA 3.0 source
    Lloyd's Coffee House at the Royal Exchange and its subscribers' roomWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 86Public domain source
    The Ziama massif, which gives its name to the coffee's geographical indication, in 2016Yakoo1986 · 2016CC BY-SA 4.0 source
    The Merchants Coffee House, as it appeared from 1772 to 1804William H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 119Public domain source
    Mount Gorongosa seen from the floodplain of the national park, at dusk, in 2018Judy Gallagher · 2018CC BY 2.0 source
    The Fogo coffee museum, at Mosteiros, in 2025GualdimG · 2025CC BY-SA 4.0 source
    Count Rumford's percolatorWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 623Public domain source
    The plunger pushed down into the coffee makerVinícius Vieira ftPexels License source
    The Mambilla plateau, in Taraba State, in 2025Thelongbaker · 2025CC BY-SA 4.0 source
    The control station of a small roasting workshop, seen from abovecottonbro studioPexels License source
    The digital control desk of a drum roastercottonbro studioPexels License source
    The green coffee district of New OrleansWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 487Public domain source
    The second London Coffee House, opened in 1754 by William BradfordWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 127Public domain source
    Serving a Chemex into three glassesRyan LansdownPexels License source
    Coffee service at a barber's in CairoWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 637Public domain source
    The single-cup service, open and closedWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 654Public domain source
    The evening at the caféWilhelm Schneider-Didam; oil on cardboard, Dorotheum sale · before 1923Public domain source
    The Tontine Coffee House, opened in 1793William H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 121Public domain source
    Jabez Burns's original roaster, 1864William H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 635Public domain source
    Hand sorting of green coffee in Addis AbabaDFID - UK Department for International Development · 2011-06-15CC BY 2.0 source
    The sorting of coffee on a plantation in Java, c. 1925Anonymous photographer, KITLV collection (Southeast Asian and Caribbean Images), Universitaire Bibliotheken Leiden, shelfmark KITLV 5444 · c. 1925CC BY 4.0; credit: KITLV collection, Universitaire Bibliotheken Leiden, KITLV 5444 source
    The tray pulled out of the roaster, loaded with beansHannoversche KaffeemanufakturPexels License source
    The “Bon”, the first printed representation of the coffee plant in EuropeProspero Alpini, De plantis Aegypti liber, Venice, Francesco de Franceschi, 1592, leaf 26 verso, woodcut; Getty Research Institute copy · 1592Public domain source
    The paved drying yards of La Isabelica, where coffee dried in the sunSigi Knoll (Lagaly_de) · 2008CC BY-SA 3.0 source
    The coffee apparatus used in the United StatesWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 703Public domain source
    The bowls filled with grounds before pouringAlina SkazkaPexels License source
    The coffeehouses of old LondonWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 87Public domain source
    The hills seen from the Lérida farm, near Boquete, in 2018gailhampshire · 2018CC BY 2.0 source
    The morning gossip in the room of the Old Cock TavernWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 569Public domain source
    The beans stirred in the cooling traycottonbro studioPexels License source
    The beans fall from the drum into the cooling trayJkafader · 2011-07-03CC BY-SA 3.0 source
    The regulars of Button's Coffee-house in London around 1720Samuel Ireland, aquatint after a drawing by William Hogarth; Wellcome Collection, London, V0006693 · aquatint from the late 18th century, scene dated 1720Public domain (Samuel Ireland died in 1800, after William Hogarth who died in 1764) source
    The Western mail coaches at the Gloucester Coffee House, PiccadillyCharles Rosenberg after James Pollard; Cooper Hewitt, Smithsonian Design Museum · 1828Public domain source
    The pioneers of roasted coffee in New York, with the approximate dates of their beginningsWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 493Public domain source
    The coffee politiciansUnidentified engraver; British Museum, London · c. 1733Public domain source
    The first Parisian cafésWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 97Public domain source
    The four positions of the berry borer in the coffee cherryKawabata A., Myers R. et al. · 2023CC BY 4.0 source
    The four stages of coffee in Guatemala, 1877 woodcutGeorge Henry Andrews, engraver, after photographs by Eadweard Muybridge, plate published in The Graphic, London, October 20, 1877, p. 376; Wellcome Collection, London, No. V0019188 · October 20, 1877Public domain (engraving published in 1877; George Henry Andrews died in 1898) source
    The bags of green coffee waiting to be roastedVisitor7 · 2014-02-11CC BY-SA 3.0 source
    The roasters of French retailersWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 423Public domain source
    The New York roasters of the old school, 1892William H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 495Public domain source
    Yeasts isolated from the mucilage during coffee fermentationGóngora C.E., Holguín-Sterling L. et al. · 2024CC BY 4.0 source
    Conveyor line in a production plantMark Stebnicki · April 1, 2022Pexels License (free, commercial use allowed) source
    African drying beds in a villageImanishimwe regisPexels License source
    PXL Roasters logo, Coffee Quest title screenPXL Roasters · 2026Brand of the site's author
    Fruit rot lesions on green, yellow and red cherries pierced by the berry borerBayman P. and Serrato-Diaz L.M. · 2025CC BY 4.0 source
    Hulling machine on a small farmVincent Mugaba · 2016-04-12CC BY-SA 4.0 source
    Raoul Felice Bossini's coffee machine, US patent No. 1,473,898Raoul Felice Bossini (Italy); United States Patent Office, Washington · issued November 13, 1923, US patent 1,473,898, single drawing sheetPublic domain (plate from a US patent, official document of the United States Patent Office not subject to copyright) source
    Angelo Torriani's high-output espresso coffee machine, Pavia, US patent No. 1,709,290Angelo Torriani, Pavia (Italy); United States Patent Office, Washington · filed June 29, 1927, issued April 16, 1929, US patent 1,709,290, single drawing sheetPublic domain (plate from a US patent, official document of the United States Patent Office not subject to copyright) source
    La Victoria Arduino Mignonne fast coffee machineWilliam H. Ukers, All About Coffee (New York, 1922) · illustration from the 1922 edition, p. 652Public domain source
    P. McAuliffe's machine for hulling, scouring and cleaning coffee, US patent No. 208,324, sheet 2P. McAuliffe, New York; United States Patent Office, Washington · issued September 24, 1878, US patent 208,324 (3 sheets), sheet 2Public domain (plate from a US patent, official document of the United States Patent Office not subject to copyright) source
    José Marcelino Urgellés's machine for removing the pulp from coffee cherries, US patent No. 1,038,031, sheet 1José Marcelino Urgellés; United States Patent Office, Washington · filed December 11, 1911, issued September 10, 1912, US patent 1,038,031 (3 sheets), sheet 1Public domain (plate from a US patent, official document of the United States Patent Office not subject to copyright) source
    Professional espresso machine and tamper on a café counterlumverte · May 19, 2025Pexels License (free, commercial use allowed) source
    Vittorio Casoletti's machine for making and brewing coffee, Turin, US patent No. 1,462,322Vittorio Casoletti, Turin (Italy); United States Patent Office, Washington · filed November 3, 1920, issued July 17, 1923, US patent 1,462,322, single drawing sheetPublic domain (plate from a US patent, official document of the United States Patent Office not subject to copyright) source
    J. List and W. B. Smith's coffee-making machine, US patent No. 517,283, sheet 1J. List and W. B. Smith; United States Patent Office, Washington · issued March 27, 1894, US patent 517,283 (4 sheets), sheet 1Public domain (plate from a US patent, official document of the United States Patent Office not subject to copyright) source
    Manuel Iglesias's coffee-making machine, US patent No. 1,493,984Manuel Iglesias; United States Patent Office, Washington · issued May 13, 1924, US patent 1,493,984, single drawing sheetPublic domain (plate from a US patent, official document of the United States Patent Office not subject to copyright) source
    Samuel Thompson's coffee washing and cleaning machine, Baltimore, US patent No. 108,407Samuel Thompson, Baltimore (Maryland); United States Patent Office, Washington · issued October 18, 1870, US patent 108,407, single drawing sheetPublic domain (plate from a US patent, official document of the United States Patent Office not subject to copyright) source
    E. C. Smith's coffee cleaning and sizing machine, US patent No. 940,989, sheet 1Elvah C. Smith; United States Patent Office, Washington · filed February 14, 1908, issued November 23, 1909, US patent 940,989 (3 sheets), sheet 1Public domain (plate from a US patent, official document of the United States Patent Office not subject to copyright) source
    J. M. Moore's coffee cleaning machine, New York, US patent No. 129,359James M. Moore, New York; United States Patent Office, Washington · issued July 16, 1872, US patent 129,359, single drawing sheetPublic domain (plate from a US patent, official document of the United States Patent Office not subject to copyright) source
    J. W. Brady's coffee cleaning machine, Baltimore, US patent No. 100,493James W. Brady, Baltimore (Maryland); United States Patent Office, Washington · issued March 8, 1870, US patent 100,493, single drawing sheetPublic domain (plate from a US patent, official document of the United States Patent Office not subject to copyright) source
    José Guardiola's coffee polishing machine, Chocolá (Guatemala), US patent No. 129,947, drawing plateJosé Guardiola, Chocolá (Central America); United States Patent Office, Washington · issued July 30, 1872, US patent 129,947, single drawing sheetPublic domain (plate from a US patent, official document of the United States Patent Office not subject to copyright) source
    C. R. Groff's coffee separating machine, US patent No. 778,576, sheet 2Charles R. Groff; United States Patent Office, Washington · filed January 9, 1903, issued December 27, 1904, US patent 778,576 (5 sheets), sheet 2Public domain (plate from a US patent, official document of the United States Patent Office not subject to copyright) source
    Italian fast coffee machines, 1903-1904William H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 651Public domain source
    German gas and charcoal roasting machinesWilliam H. Ukers, All About Coffee (New York, 1922) · illustration from the 1922 edition, p. 638Public domain source
    Elderly hand picking cherries in BrazilNicole QueirozPexels License source
    Turkish coffeehouse in SarajevoFranz Leo Ruben (1842-1920); Österreichische Galerie Belvedere, Vienna · 1897Public domain source
    Handling of a large coffee cargo on the quay at landingWilliam H. Ukers, All About Coffee (New York, 1922) · photograph from the 1922 edition, p. 326Public domain source
    Electron micrograph of a roasted bean and identification of its poresLindsey Z.R., Williams J.R. et al. · 2024CC BY 4.0 source
    Microtomography of a coffee cherry infested by the berry borer and its offspringAlba-Alejandre I., Alba-Tercedor J. et al. · 2018CC BY 4.0 source
    Moll King, mistress of King's Coffee-HouseAnonymous engraver; Yale Center for British Art · 18th centuryCC0 source
    17th-century bronze and brass mortarsWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 619Public domain source
    PXL Roasters wordmark, Coffee Quest title screenPXL Roasters · 2026Brand of the site's author
    Onward E. Winger's coffee mill, Freeport (Illinois), US patent No. 243,338Onward E. Winger, Freeport (Illinois); United States Patent Office, Washington · issued June 21, 1881, US patent 243,338, single drawing sheetPublic domain (plate from a US patent, official document of the United States Patent Office not subject to copyright) source
    Walter F. Stimpson's coffee mill, US patent No. 1,086,868, sheet 1Walter F. Stimpson; United States Patent Office, Washington · filed November 19, 1908, issued February 10, 1914, US patent 1,086,868 (2 sheets), sheet 1Public domain (plate from a US patent, official document of the United States Patent Office not subject to copyright) source
    Turkish coffee mill, Peter collection, National MuseumWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 618Public domain source
    Double electric coffee grinder with a portafilter being dosedAgencia Bonito · September 18, 2024Pexels License (free, commercial use allowed) source
    Old French coffee mills, wall-mounted and tabletopWilliam H. Ukers, All About Coffee (New York, 1922) · illustration from the 1922 edition, p. 618Public domain source
    Grinders, scale and tamper on a counterArti KhPexels License source
    Mechanical cleaning and grading of coffee at AdenWilliam H. Ukers, All About Coffee (New York, 1922) · photograph from the 1922 edition, p. 268Public domain source
    H. B. Stevens's coffee cleaner, Buffalo, US patent No. 172,671, sheet 1Henry B. Stevens, Buffalo (New York); United States Patent Office, Washington · issued January 25, 1876, US patent 172,671 (2 sheets), sheet 1Public domain (plate from a US patent, official document of the United States Patent Office not subject to copyright) source
    Nine types of green bean defects: black, broken, dried cherry, moldy, pod, immature, parchment, shell, sourJiao Y., Zhao Y. et al. · 2025CC BY 4.0 source
    DIEDRICH name embossed on an orange roasterVisitor7 · 2013-02-15CC BY-SA 3.0 source
    News brought by a courier in a Turkish caféJoseph Nash after David Wilkie; Wellcome Collection, London · 1840CC BY 4.0 source
    Night at Tom King's Coffee House, Covent GardenUnidentified engraver; British Museum, London · c. 1735-1740Public domain source
    Home reverse osmosis unit with cartridges and membrane, sold for aquariumsKingfish101 · 2008CC BY-SA 3.0 source
    Opening of a coffee plantation near Antigua, Guatemala, 1875Eadweard Muybridge, Setting out a Coffee Plantation at Antigua de Guatemala, 1875, albumen print published in 1877, National Gallery of Art, Washington, accession number 2006.133.109, gift of Mary and Dan Solomon and the Patrons' Permanent Fund · 1875, print published in 1877Public domain (CC0, Open Access program of the National Gallery of Art) source
    Pair of Geneva coffee cups for export to TurkeyHonolulu Museum of Art, on loan from the Doris Duke Foundation for Islamic Art; photograph Hiart · c. 1830CC0 source
    Packet of Van Nelle coffee substituteNationaal Bevrijdingsmuseum 1944-1945, Netherlands; photograph RenseNBM · Second World WarCC BY-SA 4.0 source
    Old packets of coffee substitutesThomas Quine (Wikimedia Commons) · 2014 photographCC BY 2.0 source
    Canephora plot under shade trees, CoorgTimothy A. Gonsalves · 2024-04-11CC BY-SA 4.0 source
    Share of lactic acid bacteria, acetic acid bacteria and enterobacteria over the course of fermentationPeñuela-Martínez A.E., Osorio-Giraldo C.V. et al. · 2025CC BY 4.0 source
    Drying patio under an overcast skyField photograph, Baja Verapaz, Guatemala · February 3, 2026Own collection
    Drying patios, Longa-España hacienda, VenezuelaWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 265Public domain source
    Silverskin from a natural roast and from a sugar roastQuagliata E., Gazzara S. et al. · 2025CC BY 4.0 source
    Dried cherry skins, known as cascaraEva BronziniPexels License source
    Walter R. Montgomery's percolator adaptable to coffee pots and teapots, US patent No. 745,883Walter R. Montgomery, Muncie (Indiana); United States Patent Office, Washington · filed March 18, 1902, issued December 1, 1903, US patent 745,883, single drawing sheetPublic domain (plate from a US patent, official document of the United States Patent Office not subject to copyright) source
    James H. Nason's coffee percolator, US patent No. 51,741James H. Nason, Franklin (Massachusetts); United States Patent Office, Washington · issued December 26, 1865, US patent 51,741, single drawing sheetPublic domain (plate from a US patent, official document of the United States Patent Office not subject to copyright) source
    Lloyd S. Roberts's slow-filtration percolator, US patent No. 1,581,871Lloyd S. Roberts; United States Patent Office, Washington · filed February 18, 1924, issued April 20, 1926, US patent 1,581,871, single drawing sheetPublic domain (plate from a US patent, official document of the United States Patent Office not subject to copyright) source
    Perkebunan Kopi Jangkat Merangin.jpgRoby diery · 2016-09-11CC BY-SA 4.0 source
    Small carbon dioxide cylinder with a regulator with two gaugesLupus in Saxonia · 2018-05-22CC BY-SA 4.0 source
    pH and temperature over 96 hours of self-induced fermentationSilva L.C.F., Pereira P.V.R. et al. · 2024CC BY 4.0 source
    Portable pH meter showing a field readingTommy Gustaviano Yeza · 2013-10-17CC BY-SA 3.0 source
    Used Vietnamese phin set on a glass of coffeeVindhyaPexels License source
    Stacks of containers at the Burchardkai terminalWolfgang WeiserPexels License source
    Dirt track through the coffee plantationField photographOwn collection
    Herbarium sheet of Coffea charrieriana, the caffeine-free coffee plantCoffea charrieriana Stoff. & F.Antony, species described from Cameroon by Piet Stoffelen and François Anthony; sheet from the living plant collections of the Meise Botanic Garden (Belgium), specimen BR5010157483583, collection number MR/S116; the record gives neither the collector, nor the date, nor the place of collection. Image made available by the Meise Botanic Garden under a CC BY 4.0 license · digitized sheet; collection date not given on the recordCC BY 4.0; credit: Meise Botanic Garden / Jardin botanique de Meise source
    Herbarium sheet of Coffea humblotiana, caffeine-free coffee plant of MayotteCollected by F. Barthelat, M. M. Pignal, M. M'Changama and B. A. Sifari, No. 520; determination J.-N. Labat; herbarium of the Naturalis Biodiversity Center, Leiden · collected on September 24, 2001 at the summit of Hachirongou, Chembenyoumba (Mayotte)CC0 1.0 source
    Herbarium sheet of Coffea pseudozanguebariae, a species lacking caffeineCollected by M. A. Mwangoka, M. Charles and T. Zuakuu; herbarium of the Naturalis Biodiversity Center, Leiden · collected in TanzaniaCC0 1.0 source
    Herbarium sheet of the type specimen of Coffea eugenioides, collected in Uganda in 1906Collected by Arthur G. Bagshawe, number 1076, July 1906, Uganda; species described by Spencer Le Marchant Moore; specimen BM000903409, The Natural History Museum, London. Image made available by The Trustees of the Natural History Museum, London, under a CC BY 4.0 license · collected in July 1906CC BY 4.0; credit: The Trustees of the Natural History Museum, London source
    Herbarium sheet of the type specimen of Coffea salvatrix, collected by Swynnerton in 1935Collected by Charles Francis Massey Swynnerton, October 1935, Southern Rhodesia (Zimbabwe); species described by Swynnerton and Philipson; specimen BM000903407, The Natural History Museum, London. Image made available by The Trustees of the Natural History Museum, London, under a CC BY 4.0 license · collected in October 1935CC BY 4.0; credit: The Trustees of the Natural History Museum, London source
    Herbarium sheet of the type specimen of Coffea stenophylla, collected by George Don in Sierra LeoneCollected by George Don (Sierra Leone, 1820s), specimen BM000903346 from the botany herbarium of the Natural History Museum, London; species published in George Don, A General History of the Dichlamydeous Plants, vol. III, p. 581 (London, 1834). Image made available by The Trustees of the Natural History Museum, London, under a CC BY 4.0 license · collected in the 1820s, species published in 1834CC BY 4.0; credit: The Trustees of the Natural History Museum, London source
    Plate of eighteenth-century silver and silver-plated coffee potsWilliam H. Ukers, All About Coffee (New York, 1922) · illustration from the 1922 edition, p. 610Public domain source
    Coffea arabica sheet from George Clifford's herbarium, lectotype of the speciesHerbarium of George Clifford III, Hartekamp garden (Netherlands), sheet studied by Linnaeus for the Hortus Cliffortianus; specimen BM000558021, The Natural History Museum, London. Image made available by The Trustees of the Natural History Museum, London, under a CC BY 4.0 license · sheet from the 1730s, designated lectotype of Coffea arabica L.CC BY 4.0; credit: The Trustees of the Natural History Museum, London source
    Plate from James W. Carter's patent for a drum roaster, 1846James W. Carter, Boston; US patent No. 4,849, “Coffee Roaster”, United States Patent Office, Washington, 1846; plate lithographed by N. Peters, Washington · issued November 12, 1846, single drawing sheetPublic domain (plate from a US patent, official document not subject to copyright) source
    Plate I: the green scale of the coffee plant and its natural enemies, Java 1897J. C. Koningsberger and A. Zimmermann, “De dierlijke vijanden der koffiecultuur op Java”, Mededeelingen uit 's Lands Plantentuin No. XX, Batavia, G. Kolff & Co., 1897; plates lithographed after drawings by Atmobroto and Kassanwardjo · 1897, plate 1Public domain source
    Plate I: coffee twig affected by thread blight, Puerto Rico 1915G. L. Fawcett, pathologist, “Fungus Diseases of Coffee in Porto Rico”, Bulletin No. 17, Porto Rico Agricultural Experiment Station, United States Department of Agriculture, Washington, Government Printing Office, 1915 · 1915, plate IPublic domain source
    Plate II: nematode galls on the fine roots of the coffee plant, Rio de Janeiro 1887Emilio Augusto Goeldi, “Relatorio sobre a molestia do cafeeiro na provincia do Rio de Janeiro”, Rio de Janeiro, Imprensa Nacional, 1887, offprint from vol. VIII of the Archivos do Museu Nacional; plates engraved by A. Lallemant, Museu Nacional · 1887, print IIPublic domain source
    Plate II: bugs and aphids of the coffee plant in JavaJ. C. Koningsberger and A. Zimmermann, “De dierlijke vijanden der koffiecultuur op Java”, Mededeelingen uit 's Lands Plantentuin No. XX, Batavia, G. Kolff & Co., 1897; plates lithographed after drawings by Atmobroto and Kassanwardjo · 1897, plate 2Public domain source
    Plate III: anatomy of the coffee nematode described by Goeldi in 1887Emilio Augusto Goeldi, “Relatorio sobre a molestia do cafeeiro na provincia do Rio de Janeiro”, Rio de Janeiro, Imprensa Nacional, 1887, offprint from vol. VIII of the Archivos do Museu Nacional; plates engraved by A. Lallemant, Museu Nacional · 1887, print IIIPublic domain source
    Plate IV: leaves, roots and egg masses, detail plate from the Goeldi reportEmilio Augusto Goeldi, “Relatorio sobre a molestia do cafeeiro na provincia do Rio de Janeiro”, Rio de Janeiro, Imprensa Nacional, 1887, offprint from vol. VIII of the Archivos do Museu Nacional; plates engraved by A. Lallemant, Museu Nacional · 1887, print IVPublic domain source
    Plate V: coffee trunk inoculated with Fusarium, Puerto Rico 1915G. L. Fawcett, pathologist, “Fungus Diseases of Coffee in Porto Rico”, Bulletin No. 17, Porto Rico Agricultural Experiment Station, United States Department of Agriculture, Washington, Government Printing Office, 1915 · 1915, plate VPublic domain source
    Plate VI: coffee root attacked by nematodes and white root rotG. L. Fawcett, pathologist, “Fungus Diseases of Coffee in Porto Rico”, Bulletin No. 17, Porto Rico Agricultural Experiment Station, United States Department of Agriculture, Washington, Government Printing Office, 1915 · 1915, plate VIPublic domain source
    Brazilian plantation in flowerWilliam H. Ukers, All About Coffee (New York, 1922), photographs The Tea and Coffee Trade Journal · p. 134Public domain source
    Coffee plantation at Clifton Mount, the Blue Mountains in the backgroundMarianne North · 1872Public domain source
    Terraced coffee plantation at Mount Gumitir, in JavaOkkisafire · 2015-02-08 10:49:25CC BY-SA 4.0 source
    Coffee plantation in full sun near Houayxay, Xékong province, in 2011Adriaan Castermans · 2011CC BY-SA 3.0 source
    Coffea robusta plantation at Bangelan, Java, 1931P. Pascalet, photographer; Bibliothèque nationale de France · 1931Public domain source
    Plantation near Cuemba, in today's Bié province, c. 1931-1932Unknown photographer, Hans Schomburgk expedition, SLUB Dresden, Deutsche Fotothek · c. 1931-1932Public domain source
    Planter inspecting his coffee plants at XicotepecDaniel MoralesPexels License source
    DIEDRICH plate on a roaster's control panelVisitor7 · 2013-10-10CC BY-SA 3.0 source
    “The San Franciscan” brass plate on a roasterVisitor7 · 2013-03-06CC BY-SA 3.0 source
    JOPER Portugal 1962 plate on a roasterDaderot · 2026-06-15CC0 source
    PROBAT plate on a roaster installed in a caféVisitor7 · 2012-01-24CC BY-SA 3.0 source
    Toper plate on the drum and control box of a roasterRobert-brook · 2025-03-23CC0 source
    Enameled sign for Franck chicoryDorfmuseum Mönchhof, Austria; photograph SK Sturm Fan · 2015 photographCC BY-SA 4.0 source
    Enameled sign for Kathreiner malt coffeeMuseum Rotterdam · 1910CC BY-SA 3.0 source
    Pump and detector of a high-performance liquid chromatograph (HPLC), the type of instrument used to measure the organic acids in a coffeeKitmondo LAB · 2013CC BY 2.0 source
    Coffee porter on the port of Santos, 302 kilos on the headPostcard published by M. Pontes & Co., Santos; Cartões Postais collection, Museu Paulista of the University of São Paulo, No. 1-03646; reproduction José Rosael and Hélio Nobre, Museu Paulista da USP · early 20th centuryPublic domain (old work, Museu Paulista license template PD-old) source
    Coffee fruit rot observed in the field, from twig to fruit sectionWang R., Shi Y. et al. · 2026CC BY 4.0 source
    First American patents for coffee pots, 1789-1921William H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 625Public domain source
    First French filters: Casseneuve's paper machine, 1824William H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 624Public domain source
    Preparing coffee for the host in a Muslim houseWilliam H. Ukers, All About Coffee (New York, 1922) · photograph from the 1922 edition, p. 659Public domain source
    Heinrich Trillich's caffeine extraction process, US patent No. 950,357Heinrich Trillich, Munich; United States Patent Office, Washington · filed April 15, 1909, issued February 22, 1910, US patent 950,357, single drawing sheetPublic domain (plate from a US patent, official document of the United States Patent Office not subject to copyright) source
    Steven Birnie's process and apparatus, Gombong (Java), for freeing the kernel from coffee cherries, US patent No. 1,737,071Steven Birnie, Gombong, Java (Dutch East Indies); United States Patent Office, Washington · issued November 26, 1929, US patent 1,737,071, single drawing sheetPublic domain (plate from a US patent, official document of the United States Patent Office not subject to copyright) source
    Advertisement for Kaffee HAG, Ludwig Roselius's decaffeinated coffee, 1932Advertisement of the Kaffee HAG company, Bremen, published in the press on November 2, 1932; digitization Bartleby08 · November 2, 1932CC BY 4.0 source
    Bread dough being kneaded in the bowl of a mixerAngela Khebou · August 6, 2022Pexels License (free, commercial use allowed) source
    Coffee nursery, Pajajabal, PochutaWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 200Public domain source
    Coffee pulp discarded in a pit after pulpingLudger001 · 2014CC BY-SA 4.0 source
    Four coffee cups from a Worcester serviceWorcester Manufactory; Metropolitan Museum of Art · c. 1770CC0 source
    Some well-known green coffee brandsWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 339Public domain source
    Branch laden with ripe and green cherries in Sri Lanka, in 2018Charles R. Benedict · 2018CC BY-SA 4.0 source
    Arabica branch with green and ripe cherries, at Pyin Oo Lwin, in 2018Myrmux · 2018CC BY-SA 4.0 source
    Twig of Coffea stenophylla in the Berlin botanical gardenJi-Elle · February 16, 2018CC BY-SA 4.0 source
    Fruiting twig of Coffea excelsa, 1935Roland Portères, photographer; Bibliothèque nationale de France · 1935Public domain source
    Canephora branches laden with cherries, BrazilNicole QueirozPexels License source
    Rows of coffee plants and dirt laneField photographOwn collection
    Rows of coffee plants under tree cover at Pyin Oo Lwin, in 2018Myrmux · 2018CC BY-SA 4.0 source
    Rows of coffee plants under shade trees, Bolovens Plateau, in 2018Christophe95 · 2018CC BY-SA 4.0 source
    Rows of steel racks loaded with coffee1500m CoffeePexels License source
    Row of industrial metal storage silosMuharrem Alper · August 19, 2025Pexels License (free, commercial use allowed) source
    Rows of bags of the National Federation of Coffee Growers of ColombiaDiego Abello RicoPexels License source
    Raking coffee on the drying yardDiego Castro CalderonPexels License source
    Mechanical harvester unloading its crop into a trailerField photograph, Brazil · 2026Own collection source
    Handheld refractometerFernando G. (FGM) · 2006CC BY-SA 3.0 source
    Relics of the Peter collection, United States National MuseumWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 617Public domain source
    Filling a bag with coffee beans from a metal hopperMasud Allahverdizade · April 10, 2025Pexels License (free, commercial use allowed) source
    Household appliance heating element covered in limescaleDmitry G · 2020CC BY-SA 3.0 source
    Faucet encrusted with limescale from hard water, in southern ArizonaBbypnda · 2014CC BY-SA 3.0 source
    Robusta in flower, Preanger, JavaWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 144Public domain source
    Robusta on the Suzannah estate, CochinchinaWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 237Public domain source
    Wheel of the post-harvest processing stages and their volatile markersPajuelo-Muñoz A.J., Cayo-Colca I.S. et al. · 2026CC BY 4.0 source
    Reception and measurement of cherries brought in by pickers, MexicoWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 223Public domain source
    Advertisement for Oberlindober fig coffeeOberlindober firm · c. 1900CC BY-SA 4.0 source
    Advertisement for Schmidt malt and fig coffeeJoh. F. Schmidt, Eppan and Bolzano · 1929CC BY-SA 4.0 source
    Advertisement for Neptune's Coffee-HouseJohn Johnson Collection of Printed Ephemera, Bodleian Libraries, Oxford · c. 1800Public domain source
    Advertisements aimed at medical journalsWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 454Public domain source
    Digital refractometer showing a Brix readingGmhofmann · 2015-07-20CC BY-SA 4.0 source
    Handheld optical refractometer in its caseCEphoto, Uwe Aranas · 2013-10-29CC BY-SA 3.0 source
    Distribution of calcium, potassium and chlorine in the section of a roasted beanDebastiani R., da Silva L.P. et al. · 2025CC BY 4.0 source
    Open bag of green coffee at Ermera, in 2012Janina M. Pawelz · 2012CC BY-SA 2.0 source
    Sixty-kilo bag of Brazilian coffee in a shopKellyPexels License source
    Packet of koji spores for seeding riceVojtěch Zavadil · 2020-11-05CC BY-SA 4.0 source
    Single-origin coffee bags lined up on a shelf with a price labelBetül Üstün · May 11, 2026Pexels License (free, commercial use allowed) source
    Jute bags of Ethiopian Yirgacheffe in a warehouseChristian DalaPexels License source
    Hand-marked bags of Marsellesa in a warehouseField photographOwn collection
    Bags from Rwanda and Ethiopia on a wooden palletCottonbro StudioPexels License source
    Restaurant dining room seen from the open-kitchen counterVidal Balielo Jr. · July 3, 2022Pexels License (free, commercial use allowed) source
    Characteristic scene of a 17th-century Turkish caféWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 21Public domain source
    Cross-section diagram of the coffee cherry and detached silverskinWronka A., Del Valle Raydan N. et al. · 2025CC BY 4.0 source
    Seven roast profiles and their phases, from color change to second crackAnokye-Bempah L., Styczynski T. et al. · 2025CC BY 4.0 source
    Turkish coffee service, Peter collection, United States National MuseumWilliam H. Ukers, All About Coffee (New York, 1922) · illustration from the 1922 edition, p. 614Public domain source
    Coffee service with floral decoration, ViennaViennese manufactory; Los Angeles County Museum of Art · 1831Public domain source
    Coffee service with antique scenes, NymphenburgNymphenburg manufactory, decoration by Anton Auer; Los Angeles County Museum of Art · 1804Public domain source
    Tea and coffee service from the Denuelle manufactory, ParisDenuelle porcelain manufactory, Paris; Art Institute of Chicago, photograph Daderot · c. 1820CC0 source
    Six degrees of roast, whole beans and corresponding groundsWilliams S.D., Barkla B.J. et al. · 2022CC BY 4.0 source
    Six types of copper jackets for pulper cylinders, page from All About CoffeeWilliam H. Ukers, All About Coffee, The Tea and Coffee Trade Journal Company, New York, 1922 · 1922, page 248Public domain (work published in the United States in 1922, copyright expired) source
    pH meter probe immersed in a dark liquid sampleAgne27 · 2012-01-25CC BY-SA 3.0 source
    Storage of coffee by brand and lot in a warehouseWilliam H. Ukers, All About Coffee (New York, 1922) · photograph from the 1922 edition, p. 320Public domain source
    Anthracnose symptoms on coffee leaves, twigs and fruitsAlhudaib K., Ismail A.M. et al. · 2023CC BY 4.0 source
    Orange rust symptoms and infectious structures of Hemileia vastatrixPelayo-Sánchez G., Yáñez-Morales M.J. et al. · 2025CC BY 4.0 source
    Sun drying of coffee at the Harar customs house, AbyssiniaWilliam H. Ukers, All About Coffee (New York, 1922) · photograph from the 1922 edition, p. 269Public domain source
    Sun drying of parchment coffee on a concrete patioDuque-Dussán E., Figueroa-Varela P.A. et al. · 2026CC BY 4.0 source
    Greenhouse drying on mesh tables1500m CoffeePexels License source
    O'Krassa coffee dryer coupled to a direct-fire furnaceWilliam H. Ukers, All About Coffee (New York, 1922) · illustration from the 1922 edition, p. 255Public domain source
    Mechanical coffee dryers: experimental prototype, industrial unit and flow simulationDuque-Dussán E., Figueroa-Varela P.A. et al. · 2026CC BY 4.0 source
    Ramón F. Cordero's coffee separator, Chivacoa (Venezuela), US patent No. 844,253, sheet 1Ramón F. Cordero, Chivacoa (Venezuela); United States Patent Office, Washington · filed July 13, 1906, issued February 12, 1907, US patent 844,253 (2 sheets), sheet 1Public domain (plate from a US patent, official document of the United States Patent Office not subject to copyright) source
    Picture of the troupe of the café-concert des AmbassadeursUnidentified poster artist, L. Michel & Cie printing house, Paris; Bibliothèque nationale de France · 1878Public domain source
    Chlorotic rust spots and defoliation of the coffee plantSantiago-Santiago M., Sánchez-Viveros G. et al. · 2023CC BY 4.0 source
    Retsch test sievesCnnresearcher · 2020 · photograph, Wikimedia CommonsCC BY-SA 4.0, cropped source
    W. S. Tyler Ro-Tap laboratory sieve shakerHannes Grobe · 2012 · photograph, Wikimedia CommonsCC BY 3.0 source
    English four-lobed cup and saucerCooper Hewitt, Smithsonian Design Museum, New York · c. 1910Public domain source
    Austrian cup and saucerCooper Hewitt, Smithsonian Design Museum, New York · c. 1805Public domain source
    Mocha cup and saucer from the Kornilov manufactoryKornilov manufactory, Saint Petersburg; Cooper Hewitt, Smithsonian Design Museum · 1900-1910Public domain source
    Cups and saucers waiting on the cup warmer of a machineCharlotte MayPexels License source
    Colorful espresso cups lined up on a counterJulia LeePexels License source
    TDS meter immersed in a glass of waterSpotless property · 2015CC BY-SA 3.0 source
    Bean temperature and rate of temperature rise for increasingly dark roastsLindsey Z.R., Williams J.R. et al. · 2024CC BY 4.0 source
    Temperature recorded in the fermentation tanks of twenty farmsGóngora C.E., Holguín-Sterling L. et al. · 2024CC BY 4.0 source
    Point-of-sale terminal with cash drawer and receipt printerVuong · March 24, 2026Pexels License (free, commercial use allowed) source
    Bistro terrace, lunch menu on a slateKarographyPexels License source
    Printed receipt listing a coffee among other itemsGOWTHAM AGM · November 22, 2023Pexels License (free, commercial use allowed) source
    Jute cloths spread on a drying patioField photographOwn collection
    Tom's Coffee House, 17 Great Russell StreetWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 85Public domain source
    Wooden barrels of Jamaica Blue Mountain coffee, in 2011Wade van laius · 2011CC0 source
    Ferd. Gothot sample roaster of 1925, German Customs MuseumAndreas Praefcke · 2010 · photograph, Wikimedia CommonsPublic domain source
    Fletcher Russell & Co home roaster, collector's itemAuckland War Memorial Museum Tāmaki Paenga Hira, collection photograph (AM 610180-2) · undated object, museum photographCC BY 4.0 source
    18th-century roaster, Essex Institute, SalemWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 621Public domain source
    Roaster identified as a Loring Smart RoastVisitor7 · 2011-12-05CC BY-SA 3.0 source
    High-capacity industrial roaster with cooling trayDiego Castro Calderon · October 31, 2024Pexels License (free, commercial use allowed) source
    Kaffelogic Nano 7 roasterKobidin · 2025 · photograph, Wikimedia CommonsCC BY-SA 4.0, cropped source
    Lido roaster from Officine VittoriaVisitor7 · 2013 · photograph, Wikimedia CommonsCC BY-SA 3.0 source
    Primo roaster at Ryan Brothers Coffee, San DiegoVisitor7 · 2014 · photograph, Wikimedia CommonsCC BY-SA 3.0 source
    A. J. Deer Co. Royal No. 5 roaster, Ciales coffee museumThe Eloquent Peasant · 2019 · photograph, Wikimedia CommonsCC BY-SA 4.0 source
    Samiac roaster, MUSCO of LimonestBenoît Prieur · 2022 · photograph, Wikimedia CommonsCC0 source
    G. W. Barth spherical roaster of 1890, Dersut museum of ConeglianoMarcocekada · 2010 · photograph, Wikimedia CommonsCC BY-SA 4.0, cropped source
    Old English and American roastersWilliam H. Ukers, All About Coffee (New York, 1922) · illustration from the 1922 edition, p. 630Public domain source
    Faulder and Simplex roasters in an English factoryWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 422Public domain source
    Old French roastersWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 627Public domain source
    Roasting in a cast-iron pan, James Dennis' Coffee, Section, Portland Parish, JamaicaMatthew Kowal (Wikimedia Commons) · November 10, 2018CC BY-SA 4.0 source
    Cold drip tower, known as Kyoto-style, in a café in BangaloreSubhashish Panigrahi · 2018CC BY-SA 4.0 source
    Tractor moving coffee on the docks of Bush Terminal, BrooklynWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 322Public domain source
    Processing of canephora in a workshop in Lâm Đồng1500m CoffeePexels License source
    Sorting of beans and husks above a bamboo sieveMichael BurrowsPexels License source
    Three commercial grades of green coffee compared with defective beansJiao Y., Zhao Y. et al. · 2025CC BY 4.0 source
    Three Vietnamese phin brewing over their glassesSóc Nâng DângPexels License source
    Entry hole of the berry borer in a coffee cherry, Mudigere, IndiaL. Shyamal · May 11, 2013CC BY-SA 3.0 source
    Hopper of a pulper loaded with fresh cherriesChristian BolanosPexels License source
    Green coffee sample tube annotated with a markerViêt Anh NguyênPexels License source
    Steel filter coffee tumblers in BangaloreMuhammed Shasal A VPexels License source
    Turk in a coffeehouseCarl Spitzweg (1808-1885) · c. 1855Public domain source
    Coffeehouse types, or hints to newspaper readersGeorge Moutard Woodward (1760-1809); Yale Center for British Art · 1808CC0 source
    A coffeehouse in the time of Charles II, 1674 woodcutWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 60Public domain source
    A café in Damascus at nightCarel Christiaan Antony Last, lithograph from life, plate 4 of an Oriental series, printed by Desguerrois et Cie, 1837; Rijksmuseum, Amsterdam, RP-P-1905-3172 · 1837CC0 (Rijksmuseum) source
    A café in Holland around 1650, after Beauvarlet's etchingWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 586Public domain source
    A café in Syria, after JardinWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 667Public domain source
    A Parisian café following Pascal's, with Armenian decorations, 17th-century printWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 93Public domain source
    A Parisian café, engraving by BosredonWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 101Public domain source
    A coffee tree on a dry slope near Mosteiros, on Fogo, between a low wall of volcanic stones and agaves, in 2010Torbenbrinker · 2010CC BY-SA 3.0 source
    An eighteen-month-old Coffea kouilou in flowerWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 147Public domain source
    An espresso pulled on the scaleAlp YıldızlarPexels License source
    An espresso pulled on a Sanremo machinecottonbro studioPexels License source
    A man rakes coffee on a vast patioField photographOwn collection
    A roaster at the desk while the beans coolcottonbro studioPexels License source
    An advertisement published in the New York Packet, January 1, 1791William H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 434Public domain source
    A coffee shop in CairoLouis Haghe after David Roberts; Wellcome Collection, London · 1849CC BY 4.0 source
    A branch bearing green, yellow and red cherries at the same timeField photograph, Brazil · 2026Own collection
    A roast run on a Loring S70Indigo.udm · 2024-12-10CC BY 4.0 source
    A coffeehouse in Tophane, IstanbulMegerdich Jivanian (1848-1906), after Thomas Allom; Google Art Project · late 19th centuryPublic domain source
    A handful of beans taken from above the binAntoni ShkrabaPexels License source
    A meeting of the Amsterdam coffee brokers, 1820William H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 291Public domain source
    A cup of coffee in São Filipe, the main town of Fogo, in 2012Ji-Elle · 2012CC BY-SA 3.0 source
    Gas roasting plant with a capacity of a thousand bags a dayWilliam H. Ukers, All About Coffee (New York, 1922) · photograph from the 1922 edition, p. 380Public domain source
    Winnowing coffee with a bamboo winnowing basketMichael BurrowsPexels License source
    Valve and regulator of a carbon dioxide cylinderRotkaeppchen68 · 2023-05-25CC BY-SA 4.0 source
    Itinerant coffee seller in the LevantWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 666Public domain source
    Turkish coffee seller and his tray of cupsUnidentified engraver; Wellcome Collection, London · c. 1860CC BY 4.0 source
    Empty tasting glasses, seen from abovePolina TankilevitchPexels License source
    Pouring milk between two pitchersMasud Allahverdizade · October 3, 2022Pexels License (free, commercial use allowed) source
    Dropping the charge in a charcoal roasting shopWilliam H. Ukers, All About Coffee (New York, 1922) · photograph from the 1922 edition, p. 395Public domain source
    Twenty-five grams of calcium chloride in a Petri dishRoi.Frvr · 2026CC0 source
    Volcano erupting above the valleyField photograph, toward the volcanoes of Acatenango and Fuego, Guatemala · February 9, 2026Own collection
    Constructed view of facing, generated by CodexGenerated visual · Codex (OpenAI) · October 22, 2026Image generated by Codex from the prompt “Generate ONE photographic image with your image generation tool (no drawing in code, no SVG, no PIL, no canvas). Studio macro photograph on a plain very light gray #f5f7f8 background, diffuse light coming from the left, tight framing. Three WHOLE roasted coffee beans, unbroken, uncracked, placed side by side, all turned onto their flat face, the one that touched the drum, with the center cut clearly visible on each bean. On the flat face of each bean, an area burned by contact with the hot metal: flat, matte, dark brown to black, with soft, diffuse edges, covering part of the face; the rest of each bean keeps its normal roast color, an even medium brown. Matte surface, no shine, no oil. Exclusions: no broken, cracked or open bean, no bean interior visible, no shine, no text, no hand, no face, no wood background, no brown decor, no steam, no other object. Landscape format, at least 1024 pixels wide.”
    Constructed view of scorching, generated by CodexGenerated visual · Codex (OpenAI) · October 22, 2026Image generated by Codex from the prompt “Generate ONE photographic image with your image generation tool (no drawing in code, no SVG, no PIL, no canvas). Studio macro photograph of a single medium brown roasted coffee bean, whole, placed on a plain very light gray #f5f7f8 background, diffuse light coming from the left, tight framing, the bean filling two thirds of the image. The bean shows its flat face, with its center cut clearly visible, marked by a sharp black spot with clean edges, one third the size of the face, in the middle of the face, far from the two tips, which stay brown; the rest of the bean is an even brown. Exclusions: no text, no hand, no face, no wood background, no brown decor, no steam, no other bean. Landscape format, at least 1024 pixels wide.”
    Constructed view of tipping, generated by CodexGenerated visual · Codex (OpenAI) · October 22, 2026Image generated by Codex from the prompt “Generate ONE photographic image with your image generation tool (no drawing in code, no SVG, no PIL, no canvas). Studio macro photograph of a single medium brown roasted coffee bean, whole, lying flat on a plain very light gray #f5f7f8 background, diffuse light coming from the left, tight framing, the bean filling two thirds of the image; only one of the two tips of the bean is blackened and charred over a few millimeters, the rest of the bean is an even brown. Exclusions: no text, no hand, no face, no wood background, no brown decor, no steam, no other bean. Landscape format, at least 1024 pixels wide.”
    View of the coffee district of San FranciscoWilliam H. Ukers, All About Coffee (New York, The Tea and Coffee Trade Journal Company, 1922) · p. 489Public domain source
    Exploded view of the coffee cherry, from skin to green bean: exocarp, mesocarp, mucilage, parchment, silverskin, beanMarco De Sousa Rosa, digital composition · 2026© PXL Roasters, all rights reserved
    Financial quotes screen showing colored numbersPixabay · October 23, 2016Pexels License (free, commercial use allowed) source
    Smout peeler-polisher and Okrassa direct-heat dryer, page from All About CoffeeWilliam H. Ukers, All About Coffee, The Tea and Coffee Trade Journal Company, New York, 1922 · 1922, page 255Public domain (work published in the United States in 1922, copyright expired) source
    Upper floor of a Jubilee installation: roaster, cooler and stonerWilliam H. Ukers, All About Coffee (New York, 1922) · photograph from the 1922 edition, p. 390Public domain source
    Change in bean porosity, from green coffee to the darkest roastsLindsey Z.R., Williams J.R. et al. · 2024CC BY 4.0 source
    “Coffee-growing region of Angola”Élisée Reclus, Nouvelle géographie universelle, English edition by A. H. Keane · late 19th centuryPublic domain source

    The home page intro

    The pixel intro on the home page is made of pieces from packs, placed without rescaling, and of a few generated objects that no pack provided, including the character who speaks, generated from a photo. These pieces are added to the register above.

    Land of pixels, Laboratory tilesetMarceles · home page intro: walls, windows, pipe, baseboard, floor, lamps, screens, cabinet, shelf, lockers, lab benches, glassware, terminals, bubble liquidCC BY 4.0 source
    Free Top-Down Bushes Pixel ArtCraftPix.net · home page intro: the bushes of the preludeFree CraftPix license: commercial use, attribution not required, files not redistributable source
    Grassland and Desert Top-Down TilesetsCraftPix.net · home page intro: the grass, the sand, the palm trees and the arch of the preludeCraftPix License source
    2D Pixel Fishing Village PackCraftPix.net · home page intro: the ship and its bags, the water, the light tray under the bean and the cupCraftPix License source
    Pixel Blacksmith House Interior and ExteriorCraftPix.net · home page intro: the furnace, its smoke, the paving stonesCraftPix License source
    Cafe ItemsToffeeCraft · home page intro: the bean (green: its tones replaced one for one), the cup and the coffee pot of the preludeFree, commercial or personal use, resale alone prohibited source
    Legacy CollectionLuis Zuno (Ansimuz) · home page intro: the roaster's steam, lightened to the laboratory tonesCC0 source
    UI Pack Pixel AdventureKenney · home page intro: the frame and the tip of the bubbleCC0 source
    Images generated by Codex (OpenAI), matched to the style of the laboratory tilesetgenerated for this site · home page intro: the character who speaks (character generated from a photo), the coffee tree, the fermentation tank, the roaster (from the photo of a Loring S15 Falcon, without logo), the book on its lecternAI-generated images, reduced, quantized to the Land of pixels palette and outlined with a one-pixel ink border source
    © 2026 Marco De Sousa Rosa · PXL RoastersTexts under CC BY-NC-SA 4.0 · tools: all rights reserved · images: see the provenanceHome · Colophon · Site map