The amount of tea consumed depends on factors such as tea drinking habits, age, health status, living environment, and customs. Generally healthy adults who have the habit of drinking tea at ordinary times should drink about 12 grams of tea a day and brew it in 3-4 times. For people who have a lot of physical labor, consume a lot, and eat a lot, especially those who have a high temperature environment and are exposed to more toxic substances, drinking about 20 grams of tea a day is also appropriate. People who have more greasy food and a lot of tobacco and alcohol can also appropriately increase the amount of tea. Pregnant women and children, people with neurasthenia, and people with tachycardia should drink less tea appropriately.