Easily clean the inside jar with a cleaning brush and then wipe it with a dry cloth. (The grinding jar is not detachable, so Don't wash it with water directly or rinse the motor base.). Multipurpose Dry Grinder - Our spice grinder is applicable to pulverize all kinds of DRIED/DEHYDRATED materials, including grains, spices, coffee beans, seasonings, rice, soybeans, corn, wheat, pepper, cumin, cinnamon, dried mushrooms, Moringa, Chaga chunks and small herbs.