2. Pu 'er tea is generally used after meals, and the daily dosage is about 1000ml. Don't apply it before going to bed at ordinary times, which is easy to shorten sleep time and easily lead to obesity. Although Pu 'er tea can help digestion and strengthen the stomach, if it is used on an empty stomach, it will enhance the peristalsis of the gastrointestinal tract and easily lead to gastrointestinal dysfunction.