Raw Pu 'er tea can lose weight, while cooked Pu 'er tea can nourish and protect the stomach, reduce blood fat and blood pressure. Drink raw Pu 'er if you want to lose weight, but drinking raw Pu 'er will hurt your stomach. Unless your stomach is healthy enough, you'd better take it after meals and brew it with boiling water. You need to wash tea before making tea, usually once or twice. Finally, remember to separate tea soup from tea leaves, otherwise the taste will be greatly affected.