Coffee Association of America (SCAA) standards of this standard baking degree caramel measuring device using infrared technology (Agtron) measuring the color of coffee beans roasting coffee to determine the degree of color from shallow to deep and will be divided into eight equal parts made of eight Standard color for the coffee sector as a baking identification. Depending on national preferences to distinguish which is the degree of roasting coffee roasting degree of the first distinction, because all countries and regions of the coffee roasting degree of the different taste preferences, thus also to the national or regional bakery called degrees, such as Yi-style baking, baking French and so on … However, the different preferences of these baked up by the degree of integration will be arranged to form a shallow baking deep degree of distinction between indicators, but because the standard is too general, thus resulting in different baking master has a different degree of baking identified. The program provides a simple measurement of measuring coffee roasting degree, the color of this tool is for reference only. Instructions: Press the test, will screen in red +, targeting analytes can be measured after pressing the measurement results for instructions.