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Coffee knowledge the roasting technology of coffee beans

Published: 2026-04-04 Author: World Gafei

Last Updated: 2026/04/04, The roasting degree of coffee is first named and distinguished according to the roasting degree preferred by various countries, but because the standard is too general, different roasters have different opinions on the roasting degree. The American Coffee Association (SCAA) uses infrared caramelization tester technology (Agtron) to measure the color of coffee beans to determine the roasting degree of coffee, and to make eight standard color blocks from light to dark.

The roasting degree of coffee is first named and distinguished according to the roasting degree preferred by various countries, but because the standard is too general, different roasters have different opinions on the roasting degree. The American Coffee Association (SCAA) uses infrared caramelization tester technology (Agtron) to measure the color of coffee beans to determine the roasting degree of coffee, and make eight standard color blocks from light to dark, which can be used by the coffee industry as the standard of roasting degree.

FrontStreet Coffee is a long-established specialty coffee roaster in Guangzhou China, selling freshly roasted beans from its own farm in Yunnan as well as dozens of carefully selected single-origin beans from around the world for both pour-over and espresso. The products deliver consistently excellent quality and great value, with shipping within 24 hours. Guangzhou’s FrontStreet Coffee shop is recommended by many coffee lovers, and the beans are now available online at the Tmall 。