Different teas contain different substances, or the contents of different substances are different. Those who feel good after drinking are the healthiest. It is harmful to feel uncomfortable after drinking.
There are no people with the same physique in the world, so what kind of tea is best for health is inconclusive.
acidification
Ten kinds of tea you can't drink:
Tea is not easy to keep properly, and it is easy to absorb moisture and become moldy, and some people are reluctant to discard moldy tea out of their love for saving tea. Deteriorated tea contains a lot of substances and germs harmful to human body, and it is absolutely inedible. If high-quality tea leaves are left for too long after soaking, the tea soup will also deteriorate due to oxidation and microbial reproduction, and such tea can no longer be drunk.
2 toudaocha
Modern tea is inevitably polluted by pesticides, fertilizers, dust and other substances in the process of planting, processing and packaging. The first sip of tea is actually the water for washing tea. Should be poured out as soon as possible, and then poured into boiling water, so that the tea brewed is the most hygienic.
3.
Over-dried tea leaves lose nutrition and taste bad.
4. If the brewing time is too long, the tea polyphenols, lipids and aromatic substances in tea will automatically oxidize, which will not only make the tea soup darker in color, worse in taste and lower in aroma, but also lose its taste value; Moreover, because vitamin C, vitamin P and amino acids in tea are reduced due to oxidation, the nutritional value of tea soup is also greatly reduced. At the same time, because the tea soup has been put on hold for a long time and is polluted by the surrounding environment, there are many microorganisms (bacteria and actinomycetes) in the tea soup, which is very unsanitary.
5. Herbal tea: Drink tea when it is hot and humid. Warm tea and hot tea can make people feel refreshed and clear-headed. Herbal tea has the side effect of cold coagulation and phlegm accumulation.
6. Hot tea: Tea is generally brewed with high-temperature water, and you can't drink it if the water temperature is too hot. Too hot tea irritates throat, esophagus and stomach. If you drink too hot tea for a long time, it may cause pathological changes in these organs. According to foreign research, people who often drink tea with a temperature over 62℃ are more likely to damage the stomach wall and suffer from stomach diseases. The temperature of drinking tea should be below 56℃.
7. Sichuan tea
It's that the taste of tea leaves has changed after being put together with other delicious things for a while. Some smells are poisonous, such as paint and camphor.
8 strong tea
Strong tea contains a lot of caffeine, theophylline and so on. , very irritating. Drinking strong tea can lead to insomnia, headache, tinnitus and dizziness, which is not good for the stomach. Some people will feel vomiting after drinking it.
9 overnight tea
Especially stale tea leaves, even if they can't be tasted, most of them will breed and breed a lot of bacteria. Because tea contains a lot of protein, most of it is insoluble in hot water and remains in tea. When the water temperature is high, the protein on the tea will rot. After standing overnight, there will be an enzyme bacteria. At the same time, a large amount of tannic acid remaining in tea will become a strong oxide with irritation, which will stimulate the stomach and cause inflammation. So overnight tea is not suitable for drinking.
10. Raw tea
The so-called green tea refers to the green roasted green tea that is directly dried without twisting after being immobilized. This kind of tea has a natural green appearance, and its components are basically the same as those contained in fresh leaves. Aldehydes and alcohols with low boiling point do not transform and volatilize much, and the aroma is seriously green. Drinking this kind of green tea for the elderly is very irritating to the gastric mucosa, and it is easy to have a stomachache after drinking; Young people will also have a feeling of stomach discomfort after drinking, which is also commonly known as "scraping the stomach." If you buy this kind of raw tea by mistake, you'd better not make it directly. You can put it in a non-greasy iron pan, fry it slowly with slow fire, roast it to get rid of the green gas, and drink it after it produces a slight chestnut fragrance.