How to clean the Japanese little Fuji bean grinder-Fuji Xerox 205b to clean up the waste powder

How to clean the Japanese small Fuji bean grinder-Fuji Xerox 205b clean up the waste powder (1) select and test the sample beans. There are four kinds of beans in this cup: shallow baking honey kiss medium baking Yega Chuefei medium depth Manning medium depth Italian matching beans (2) choose to participate in the tester. A total of three people took part in the cup test, one of whom selected a sample for Q-Grader (International Coffee expert) (3)