Is Pu 'er tea as long as possible?
Compared with other teas, Pu 'er tea is a kind of tea with special storage resistance. After a certain period of storage, the quality of Pu 'er tea will improve with the extension of storage life due to the after-ripening effect of Pu 'er tea. However, Pu 'er tea is not stored indefinitely for decades. The unique quality and aroma of Pu 'er tea are formed by fermentation during storage. After a certain period of time, the main chemical components of Pu 'er tea, such as tea polyphenols, amino acids, sugars and other substances, changed, making the soup color and aroma tend to be idealized. However, if the storage conditions are improper or not scientifically stored indefinitely, it will inevitably reduce its quality. If the best quality Pu 'er tea is still stored indefinitely, it will inevitably lead to the gradual decomposition and oxidation of the beneficial components in its tea, and then lose the special flavor of Pu 'er tea. Therefore, the storage process of Pu 'er tea depends on the situation. Generally, new raw tea can be stored for about 10 years, and satisfactory quality can be obtained. For fermented "cooked tea", it doesn't take decades, but it can be stored for 2 ~ 3 years to improve the quality and flavor.
The Best Shelf Life of Pu 'er Tea
It is generally believed in the industry that it takes some time for Pu 'er tea to go through a series of production processes such as production and fermentation. Generally, within the shelf life of 10 year, the concept of Pu 'er tea is applicable, but beyond this shelf life, this statement is not applicable. In addition, only Pu 'er tea with good quality and proper storage has the potential of old collection.
Efficacy and function of Pu 'er tea
Pu 'er tea has always been loved by the majority of female compatriots. First, Pu 'er tea is warm, and warming the stomach does not hurt the stomach. Secondly, Pu 'er tea can reduce blood fat. Third, the decline in blood lipids will naturally bring about weight loss; In addition, Chinese medicine also believes that Pu 'er tea has the functions of clearing away heat and relieving summer heat, detoxicating and promoting digestion, relieving fatigue, promoting diuresis and relaxing bowels, eliminating phlegm and expelling wind, relieving exterior syndrome and relieving cough, promoting fluid production and benefiting qi, and prolonging life.
1, Pu 'er tea can purify blood.
Due to the improvement of quality of life, overnutrition and lack of exercise, it is easy to cause cholesterol to accumulate on the wall of blood vessels and cause stroke. Pu 'er tea contains atropine, which is equivalent to inhibiting the increase of blood pressure, neutralizing blood lipids and purifying blood. Tea is rich in chlorophyll, which can prevent the absorption of cholesterol in the body and further help digest cholesterol. If you can get used to drinking, you can excrete animal fat, increase the virtuous cycle of blood and promote metabolism. Banna rural people, generation after generation of tea pots, drink all Pu 'er tea hand-fried green tea, while in rural areas, there are few cases of cardiovascular and cerebrovascular diseases.
2, lowering blood fat, lowering blood pressure, and resisting arteriosclerosis.
Lowering blood lipid, also known as lowering blood lipid, refers to reducing the content of cholesterol in blood and preventing hyperlipidemia. Because obesity is often accompanied by an increase in cholesterol, the slimming effect of tea is also effective in lowering blood fat. Tea polyphenols in tea can not only remove fat, but also significantly inhibit the increase of cholesterol content in plasma and liver and inhibit arteriosclerosis of arterial wall. Studies have shown that tea pigment has obvious effects of anticoagulation, promoting fibrinolysis, preventing platelet adhesion and aggregation, and inhibiting the proliferation of arterial smooth muscle cells. Tea polyphenols, vitamin C and vitamin P contained in tea are all effective components for preventing and treating hypertension. Drinking Pu 'er tea can relax blood vessels, reduce blood pressure, slow heart rate and reduce cerebral blood flow, which has a good effect on hypertension and cerebral arteriosclerosis in the elderly. Pu 'er tea can reduce plasma total cholesterol, triglycerides and free fatty acids, relieve fatty liver of cholesterol, increase cholesterol elimination, and slightly inhibit the synthesis of cholesterol in liver. The special stacking fermentation process in Pu 'er tea makes brass exist in the form of brass glycoside, which has the function of vitamin P and is also an effective substance to prevent arteriosclerosis. However, Pu 'er and other teas also need attention. Let's explain in detail the taboos of Pu 'er tea, always pay attention to it and drink tea healthily.
What are the taboos for drinking Pu 'er tea?
1, it is not advisable to drink strong tea on an empty stomach, but it is very pleasant to drink at any time. As the saying goes, "drinking tea on an empty stomach makes you flustered and it is difficult to fall asleep at night." Drinking tea on an empty stomach will dilute gastric acid, inhibit the secretion of gastric juice, hinder digestion, and even cause palpitation, headache, stomach upset, dizziness, upset and other "drunken tea" phenomena, and affect the absorption of protein.
2, Pu 'er tea is drunk with the bubble, avoid drinking Pu 'er tea overnight. After a long period of soaking, harmful substances such as heavy metals will be separated from tea, and a large number of tea polyphenols will be oxidized, which will make the color of tea cloudy and reduce the health care effect. In addition, Pu 'er tea soaked in thermos cups should not be drunk often, and Pu 'er tea should not be drunk overnight.
3. The freshly brewed Pu 'er tea is not suitable for drinking. From the point of view of nutrition, the newly brewed Pu 'er tea has not been placed for a period of time, and its nutrients have not been oxidized. Some elderly patients with gastric acid deficiency and chronic gastric ulcer may have adverse reactions after long-term drinking.
It is very important to keep the tea set clean. Don't forget to wash the cups frequently when drinking Pu 'er tea. Some people who often drink Pu 'er tea like to have a thick layer of "tea dirt" in their cups, and think that the Pu 'er tea brewed in this way tastes better. In fact, tea dirt is extremely harmful to human health. It contains a variety of heavy metals, which are brought into the body when drinking tea, hindering the absorption of nutrients, and also contains some carcinogens. Therefore, the tea scale on the inner wall of Pu 'er tea utensils should be cleaned in time to avoid its harm to health.
5. It is forbidden to drink Pu 'er tea for a long time, and it is not appropriate to drink Pu 'er tea intermittently. It should be fine and continuous, otherwise it is difficult to play a healthy and upward role. Hua Tuo, an ancient famous doctor, put forward the argument of "bitter tea for a long time, benefiting from thinking and meaning" in On Food.
6. Pu 'er tea should be drunk warm, not cold and hot. The temperature of drinking Pu 'er tea should be 25~50 degrees, not more than 60 degrees. Drinking cool Pu 'er tea often will have side effects on people's mouth, throat and stomach, especially those with poor spleen and stomach. Therefore, we advocate warm drinking for health.
7. Pu 'er tea is forbidden to drink lightly, and it is not advisable to drink strong tea for a long time. Drinking too strong Pu 'er tea will cause metabolic dysfunction, weaken the absorption of iron in food by gastrointestinal tract, and cause anemia or vitamin B deficiency.
8. Avoid drinking a lot of Pu 'er tea before and after meals. Drinking a lot of Pu 'er tea before meals will dilute saliva and affect food digestion. Drink alcohol at the right time after meals, not blindly. It is best to leave for an hour before and after meals, in order to truly achieve the best effect of health care.
9. Drink Pu 'er tea moderately before going to bed. It is best not to drink Pu 'er tea (raw tea) 2 hours before going to bed, which will cause mental excitement, affect sleep and even insomnia. But you can drink a small amount of mild cooked tea.
10, avoid drinking inferior tea or deteriorated tea. When storing Pu 'er tea, we should pay attention to the environment and avoid absorbing peculiar smell, otherwise it will easily absorb moisture and become moldy. Deteriorated tea contains a lot of harmful substances and germs.
1 1. Avoid making Pu 'er tea too many times. If Pu 'er tea is brewed too many times, it will soak some trace substances that are harmful to the health, which is not good for the health.
12, Cautious Boiling Due to long-term high-temperature boiling, the tea polyphenols retained in Pu 'er tea are oxidized and reduced, vitamins are destroyed, and water-insoluble substances (such as heavy metals and pesticide residues) are precipitated, so from a scientific point of view, it is unhealthy to cook tea.