Coffee knowledge the roasting technology of coffee beans

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.