Bitter tea powder is a new type of tea powder, and the powder tea made of bitter tea through special technology has the effect of health care. When camellia oleifera bears bitter tea seeds, it is harvested and treated to extract bitter tea oil commonly known as "tea seed oil", and the remaining bitter tea residue is dried and ground into powder, which is bitter tea powder. Bitter tea powder can clean oil stains because it contains saponin and soap.