2. Sunlight method: Red coffee bean fruit is taken, directly dried and then forcibly peeled and shelled. This method of beans often has defects and is not beautiful. The beans of sun-dried beans often have foreign bodies or stones. The beans treated by this method are rich in flavor, have the taste of the sun, have a strong fruit flavor, and have a consistency better than that of water washing, but the beans are not good. General Brazilian beans, as well as mandolin and mocha, are typical sun-treated beans.

3. Water washing method of raw coffee beans: put the harvested fruits into a flowing sink, remove the fruits floating on the water surface, and peel off the skin and pulp with a pulp remover. Then put it into the sink to remove the floating pulp. After that, move into a fermentation tank, soak for half a day to one day, and then dissolve the gum on the surface of the fermented coffee beans.

4. After washing with water, drying in the sun for a few days, drying it with a machine, and finally removing the endocarp with a sheller, which becomes raw coffee beans that can be used as commodities. In this way, it will be more beautiful in color and less in impurities than dry coffee beans. About 70% of the output in Colombia, Mexico, Guatemala and other countries adopts this method.

5. Semi-water-washing coffee bean treatment: when the fruit turns red, pick it, but don't throw it into the fermentation tank. Use a machine to remove the peel, then spread the berries on the ground, dry them and moisten them, and use a special machine to grind off the dry pulp and take out the seeds. Most of Mandenin in Indonesia is semi-washed. Brazil has also used semi-washing method in recent years, which is the only country in the world that has three treatment methods: sun exposure, washing and semi-washing.

6, coffee raw bean honey treatment method: the so-called honey treatment, refers to the process of making raw beans with mucous membranes for sun drying. After the outer pulp of the coffee bean is removed, there will be a sticky jelly. The traditional washing method is to wash it off with clear water, but because of the water resources limitation in some high-altitude producing areas, this direct drying method has appeared.

7. The honey treatment process is vulnerable to pollution and mildew, so it needs to be closely watched throughout the process, constantly turned over, and accelerated drying to avoid bad fermentation smell. Its advantage is that it can best preserve the original sweet flavor of coffee ripe fruit, making coffee appear elegant brown sugar flavor and sweet stone fruit, and berry flavor also supports the aroma of red wine, which is considered as a very elegant product.