One minute to understand the changing process of coffee beans during roasting.
Coffee roasting is a collection of a series of physical and chemical changes, which is the final stage of the formation of coffee bean flavor. In the process of change, there will be some phenomena as follows.
1. The moisture escapes and the weight is reduced.
two。 The texture changes from hard to brittle, with a large number of pores.
3. The color deepens gradually.
4. The individual flavor and characteristics gradually weakened, and the sense of balance and alcohol thickness gradually increased.
5. Carbon dioxide and large amounts of aromatic gases escape.
6. Aromatic oils form and gradually spill over to the surface of coffee beans.
7. Heating to a certain stage of baking will promote the chemical reaction to form new flavor substances and release energy, that is, primary explosion and secondary explosion.
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