Manual inspection of raw coffee beans how to identify defective beans from the appearance of raw beans

With reference to the origin and grading, grab the raw beans with your hands and check their appearance. The feeling of the hand is very important. Judging from the appearance of raw beans, their quality must have some experience, at the same time, it is difficult to set standards.

The color has no difference in uniform light green, with luster. Also take into account the changes in color after harvest.

The shape requires that the particles are uniform and neat, and there should be no deformed beans. When a small number of them are mixed in, they must be picked out in time.

The taste should have the fresh and fragrant smell of raw beans. There is no need to judge the personalized taste of raw beans, but to make sure it is a fresh crop. Raw beans should not have a peculiar smell (fermentation, mildew, medicine, soil, etc.).

Defective bean worm eaten beans, immature beans, fermented beans, hard shell beans, broken beans and so on, can be identified from the appearance.

(this article is reprinted)