Processing of coffee beans: washing (wet method)

Washing method: good gloss, less foreign body mixed, slightly better sour taste, Colombia, Mexico, Guatemala use this method. Disadvantages: poor handling of time will produce bad smell and special sour smell.

The picked coffee cherries, including freshly ripe, overripe, and unripe ones, are all mixed together. If these coffee cherries are not treated separately, the quality of the coffee beans is really unpalatable, because it is mixed with a lot of bad-tasting impurities. So these coffee cherries should be washed and placed in a large trough full of water for preliminary classification. The best coffee has a high density, so it sinks into the water. On the other hand, overripe coffee cherries will surface and can be easily classified. Remove the pulp from the outer layer of the coffee cherry and then soak it in a large sink filled with water. After fermentation, the water-washed coffee will have a distinctive and clear flavor. The fermented coffee beans are washed with clean water, then removed from the water and dried in the sun or machine. Finally, the peel and silver peel are removed by a sheller, which can be screened and divided into different grades of raw coffee beans.