Organic Black Tea is fermented to make but become, tea in the red oxidation fermentation effect of oxidase, become Black Tea. Black Tea gentle, mellow taste, in addition to containing water soluble vitamins, also contains trace elements of potassium rich, when brewing tea in water soluble K 70%. Potassium can enhance heart blood circulation, and can reduce the consumption of calcium in the body. Because Black Tea contained in manganese is an indispensable element of bone structure, often drink Black Tea is good for strong bones. The data reported abroad, prevention and treatment of often drink Black Tea and cold, stroke and cancer of the skin effect.