Pu 'er tea is divided into raw tea and cooked tea, and the technology is completely different, so the tea properties are also different. Raw tea is cold, so it hurts the stomach, while cooked tea is warm, so it nourishes the stomach because it has been fermented.

Medical clinical trials have proved that Pu 'er aged tea and cooked tea do have the function of protecting the stomach. At a suitable concentration, drinking mild Pu 'er tea will not stimulate the stomach. Thick, smooth and mellow Pu 'er tea enters the human stomach, forming a film attached to the stomach surface, which produces a beneficial protective layer for the stomach. Drinking Pu 'er tea for a long time can nourish and protect the stomach.

The principle is that Pu 'er tea produces a large number of derived substances after fermentation, which decomposes macromolecules into small molecules, which is beneficial to human gastrointestinal absorption and has little irritation. Tea polyphenols in green tea and oolong tea are higher than those in Pu 'er tea, but tea polyphenols are macromolecules, and drinking them on an empty stomach will strongly stimulate people's gastrointestinal tract.

Pectin in Pu 'er tea is much higher than other teas. It not only embodies good adsorption, but also combines and eliminates bacterial toxins and other harmful substances in the body, such as lead, mercury and radioactive elements in heavy metals, and plays a detoxification role; At the same time, it can protect gastric mucosa and help digestion

Pu 'er tea is weakly alkaline at first, just like other teas, but with the increase of storage time, its tea properties will begin to change. Mainly depends on the soup color of tea. When the soup color turns to grape red, this tea has already possessed the health care function of human body, and this tea has changed from weak alkaline to alkaline. For people with acidic constitution, the stomach and digestive system will get better and better after drinking, so it will have the effect of nourishing the stomach.

Extended data:

Identification method of new and old Pu 'er tea;

Tea appearance

The appearance of new Pu 'er tea is fresh, mostly yellow-green, with white hair and strong taste. After a long period of oxidation, the appearance of aged tea leaves will be purplish red, and the white hair will turn yellow-brown.

2. Color of wrapping paper

Usually, the white paper of aged Pu 'er tea has become obsolete with the passage of time, and the paper is slightly yellow. Therefore, the age of Pu 'er tea can be judged from the aging degree of hand-woven and printed paper. But this can only be used as a reference, not as an absolute basis, because some unscrupulous businessmen may take advantage of this psychology and package secondary products with yellow old wrapping paper.

References:

Baidu encyclopedia-Pu 'er tea