Coffee Roasting Hot Air Roaster
Coffee roasting (coffee roasting) refers to the heating of raw beans to convert starch in raw beans into sugars and acids at high temperature, cellulose and other substances will be carbonized to varying degrees, water and carbon dioxide will be volatilized, protein will be converted into enzymes and fats, and the remaining substances will be combined to form an oil film on the surface of coffee beans, and in this process will produce sour, bitter, sweet and other flavors of coffee. The process by which raw beans are converted into dark brown beans by forming a mellow degree and hue. Because a variety of small changes in temperature, heat and other small changes in the baking process can change the taste of beans, different beans have different characteristics, and baking is a fast operation in a short time, so it is required to accurately budget the baking process and adjust it timely.
The operation steps of the hot air roaster:
1) measure the amount of raw coffee beans to be roasted with the measuring cup attached to the machine, place the raw coffee beans in the baking room and close the lid.
2) turn on the power supply, select the appropriate baking time setting on the machine according to your needs, and turn on the switch to start baking.
3) there is a cooling time of 3 to 5 minutes after baking. After baking, the light on the power switch is turned off, and then unplug from the socket after cooling.
4) after baking, remove the top cover, remove the silver skin collection net, and then pour out the coffee beans.
Hot air roaster: take hot air baking, the operation is relatively simple, in which the more high-end also has programming to control the temperature and time, automatic cooling function, eliminating the process of manual cooling after the bean. General low-grade products can be equipped with their own timers and thermometers to solve the temperature and time control, and then equipped with electric fan cooling.
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Coffee roasting electric direct drum roaster
Coffee roasting (coffee roasting) means that through heating raw beans, starch in raw beans is converted into sugars and acids at high temperature, substances such as cellulose will be carbonized to varying degrees, water and carbon dioxide will be volatilized, proteins will be converted into enzymes and fats, and the remaining substances will be combined to form an oil film on the surface of coffee beans, and in the process coffee acids will be formed.
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Grading standard of raw coffee beans
There are two ways to classify brown raw beans, one is to filter the number, and the other is to divide it by elevation. It is divided by the number of the filter screen, and the size is in the unit of the screen (size). Round beans are generally smaller than flat beans, between 8-13 and 12-29. 8, 9, 10. 12, 13. 18. 29 = small, medium, ordinary. Quasi-big. Big, extra large. The bigger the size, the bigger the beans. Like SC-1.
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