Arabian coffee with small quantity, high quality and soft taste in the Democratic Republic of Sao Tome and Principe

High-quality coffee beans are refined by water treatment. The coffee beans with less impurities can be obtained by the water washing method, but if the water quality and time are not properly controlled during the fermentation process, the coffee beans will easily be infected with the sour taste of excessive fermentation. and dry beans also need to pay attention to timely re-inspection to prevent coffee beans from being contaminated by wet ground and sundries. Processed