Planet, Lonely; Garwood, Duncan; Averbuck, Alexis; Maxwell, Virginia (1 de diciembre de 2019). Lonely Planet Rome(en inglés). Lonely Planet. ISBN978-1-78868-678-5. Consultado el 2 de junio de 2023.
Meister, Erin (25 de abril de 2011). «Coffee History: Luigi Bezzera, Inventor of the Espresso Machine»(html). Seriuos Seat. Archivado desde el original el 29 de abril de 2011. Consultado el 31 de julio de 2018. «During the late 19th and early 20th century, Italy's Industrial Revolution was in full force, with big, cranking industries popping up faster than you can say "a-pizza pie." Before long, factory bosses noticed how much more productive their drones after a coffee break. But there was one big downside: The coffee break took too darned long. Each coffee had to be brewed in smallish batches—usually as something similar to what we consider Turkish coffee, with pulverized coffee grounds boiled in water—which could take upwards of five minutes to make and even longer to sip. What to do? Make it faster, of course. One enterprising young Milanese man named Luigi Bezzerra did just what was needed to solve the productivity problem: he built a machine. Specifically, the world's first single-serving espresso machine, patented in 1901—capable of making very concentrated, gulpable drinks in as little as half a minute.»
Bob Kummerfeld. «An Espresso Timeline»(en inglés). Universidad de Sídney. Archivado desde el original el 25 de junio de 2009. Consultado el 10 de abril de 2008.
web.archive.org
Bob Kummerfeld. «An Espresso Timeline»(en inglés). Universidad de Sídney. Archivado desde el original el 25 de junio de 2009. Consultado el 10 de abril de 2008.
Meister, Erin (25 de abril de 2011). «Coffee History: Luigi Bezzera, Inventor of the Espresso Machine»(html). Seriuos Seat. Archivado desde el original el 29 de abril de 2011. Consultado el 31 de julio de 2018. «During the late 19th and early 20th century, Italy's Industrial Revolution was in full force, with big, cranking industries popping up faster than you can say "a-pizza pie." Before long, factory bosses noticed how much more productive their drones after a coffee break. But there was one big downside: The coffee break took too darned long. Each coffee had to be brewed in smallish batches—usually as something similar to what we consider Turkish coffee, with pulverized coffee grounds boiled in water—which could take upwards of five minutes to make and even longer to sip. What to do? Make it faster, of course. One enterprising young Milanese man named Luigi Bezzerra did just what was needed to solve the productivity problem: he built a machine. Specifically, the world's first single-serving espresso machine, patented in 1901—capable of making very concentrated, gulpable drinks in as little as half a minute.»
