Is it okay to drink Pu'er tea if you have a cold stomach? If people with a cold stomach want to drink tea, they generally should not choose cold tea, but can choose warm tea. The cooked tea in Pu'er tea is fully fermented warm tea, so it is okay for people with cold stomachs to drink cooked Pu'er tea, which can warm the stomach. So, let’s now understand the issues related to drinking Pu’er tea for people with cold stomach.

The reasons why drinking cooked Pu'er tea warms the stomach if the stomach is cold:

(1) After Pu'er tea is fermented, there will be a large number of derivative substances in it, which are basically small molecules, so that It is beneficial to the adsorption of the gastrointestinal tract with special problems and has little irritation. Although the content of green tea and oolong tea is higher than that of Pu'er tea, many of the substances contained in tea polyphenols are large molecules. Drinking them on an empty stomach will strongly stimulate the human gastrointestinal tract. Therefore, it is best for people with weak constitution to drink less green tea.

Therefore, even for Pu'er tea, if it has not been artificially fermented or naturally fermented, it cannot be drunk on an empty stomach because the molecular weight is too high. Therefore, in addition to Pu'er fresh tea, Pu'er raw tea that has been naturally fermented for more than five years and Pu'er ripe tea that has been aged for more than three years have the effect of "warming the stomach."

(2) Pu'er tea contains much higher pectin than other teas. Therefore, it not only shows good adsorption properties, but can also bind and eliminate bacterial toxins and other harmful substances in the body, such as lead, mercury and radioactive elements in heavy metals, which play a detoxification role; it also protects the gastric mucosa, Helps digestion. Therefore, for people with a bad stomach, if they drink Pu'er ripe tea, the pectin substances in the tea can form a thin film and adhere to the gastric wounds, which is better for the stomach.

(3) Caffeine can neutralize the body’s slight acidity, thereby improving digestive function. The key to the effectiveness of Pu'er tea in nourishing the stomach lies in the quality of fermentation. We can do such an experiment: brew three tea samples: green tea, raw tea (new tea), and cooked tea, and then put three cups of tea soup in the refrigerator. When the temperature of the tea soup drops to about 5 degrees above zero, take it out and observe whether there are changes in the tea soup.

At this time, we will find that the green tea soup has a large amount of milky suspended matter, which is the most turbid, due to the reduction of pectin substances; secondly, the raw tea has a small amount of milky suspended matter, and the color of the tea soup is brown , darker, not transparent, the reason is also the reduction and polymerization of macromolecules that have not been completely decomposed during the fermentation process; the best should be cooked tea, with no visible suspended solids and impurities, and the color of the tea soup is slightly different from when it was just brewed. Darker.

It can be seen from this experiment that there are a large number of macromolecular substances in unfermented tea. After the tea soup cools down, it causes the reduction of substances and the chemical reaction of the polymer, resulting in severe turbidity. The slight turbidity in raw Pu'er tea is due to insufficient fermentation and many substances are not fully decomposed. Ripe tea is a deeply processed product, almost all of which are small molecules. Therefore, although it also undergoes reduction and polymerization, they are all polymerization of small molecules, so the tea soup only appears darker.

Similarly, we can also use this method to determine the age of Pu'er tea. Generally speaking, the younger the age of the tea, the more turbidity it will have, and the older the tea, the less turbidity it will have. Tea that is more than ten years old will rarely have suspended solids and impurities visible to the naked eye, and the tea soup will become more and more transparent.