How to grade coffee?

Coffee beans are classified by size first, and then by density. Except for two exceptions, all coffee beans are the same size and proportion. One side of them is flat and the other side is semi-oval. The special cases are pea-shaped coffee beans with oval shapes and giant coffee beans with larger particles (namely Lippi coffee beans in malago), and the prices of these two kinds of coffee beans are always higher.

Generally speaking, large coffee beans are of better quality. The size classification of coffee beans is usually expressed by 10-20, but some countries classify coffee beans by a certain size, such as AA grade.

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Origin origin:

Legend has it that there was a shepherd Carl on the plateau of Ethiopia in Africa around the tenth century AD. One day, when he saw a goat, he suddenly looked very excited and excited. He felt very strange. Later, after careful observation, he found that these sheep got excited after eating some red fruit.

Carl tasted some curiously, and found that he felt refreshed and excited after eating it, so he picked some of this incredible red fruit and took it home for the local people to eat, and its magical effect spread.