Can you drink overnight tea?

Overnight tea can not be drunk, in the summer morning brewed tea to the afternoon after the best is also not to drink, some people like to make a pot of tea to drink all day, so not good, not only tea is easy to be infected with bacteria, and tea brewing is a certain number of times, too many brewing times will be the tea contains some bad substances also to brew out, (generally reasonable brewing times are not brewed harmful substances) originally drink tea for health, do not become harmful because of improper tea drinking. However, the unspoiled overnight tea has its own wonderful use in medical treatment, and the overnight tea contains rich acids, which can prevent capillary bleeding, such as stomatitis, tongue pain, warm rash, bleeding gums, sores and abscesses, etc., can be used overnight tea**. The eyes are often watery or bloodshot, and you can also wash your eyes with overnight tea several times a day.

Before and after brushing your teeth in the morning or after meals, rinse a few sips of overnight tea to freshen your breath and fix your teeth. New uses of overnight tea Overnight tea is rich in acids and fluoride, which can not only prevent capillary bleeding, but also play a role in sterilization and anti-inflammatory. If there is red silk in the eyes or tears for unknown reasons, it will have a good effect if you use overnight tea several times a day.

Washing your hair with overnight tea can cure an itchy scalp. Bad breath is a problem for many people, and if you rinse your mouth three times a day with overnight tea, you can get rid of it. Use overnight tea to scrub oil lead, basins, plates, bowls, painted furniture, etc.

Overnight tea has lost most of its vitamins due to a long time, and the proteins and sugars in the tea soup will become nutrients for bacteria and molds to multiply, so people usually think that overnight tea cannot be drunk. In fact, overnight tea that has not deteriorated can not only be drunk, but also has the following health effects: anti-cancer, anti-oxidation:

Tea will turn reddish-brown after being left for a long time, which is due to the oxidation of tea polyphenols into reddish-brown tea pigments. Studies have shown that tea polyphenols and tea pigments have strong anti-cancer and antioxidant effects, although the content of vitamin C in overnight tea is greatly reduced, but it still has anti-disease effects. Hemostasis:

Overnight tea is rich in acids that stop capillary bleeding. If you suffer from stomatitis, tongue carbuncles, eczema, bleeding gums, etc., you can rinse your mouth with overnight tea**. Sores and abscesses, **bleeding can also be bathed.

Eye-catching: The tea polyphenols in overnight tea have antibacterial and anti-inflammatory effects, and if red threads appear in the eyes, you can wash them with overnight tea several times a day. Anti-itching:

Wash your hair or wipe your body with warm overnight tea, the fluoride in the tea can quickly relieve itching and prevent eczema. Hair growth: Wash your hair with overnight tea, which also has the effect of hair growth and dandruff.

If you think your eyebrows are thin, you can use a brush dipped in overnight tea every day to brush your eyebrows, and after a long time, your eyebrows will naturally become thick and shiny. Solid teeth cleaning: After the fluoride in the tea and the enamel of the teeth are calcified, it will enhance the resistance to acidic substances and reduce the occurrence of tooth decay; Fluoride can also eliminate plaque, and it is best to rinse your mouth with tea two or three minutes after eating.

In addition to bad breath: tea contains essential oils, the smell is fragrant, before and after brushing teeth in the morning or after meals, gargle a few mouthfuls of overnight tea, which can make the breath fresh, and often rinse your mouth with tea can eliminate bad breath. Sun Protection:

**Sunburn, can be gently wiped with a towel dipped in overnight tea. Because tannic acid has an astringent effect on **, the flavonoid compounds in tea also have an anti-radiation effect. Remove the smell and remove the greasy:

Overnight tea also has a strong effect of removing fishy gas and greasy, and it feels refreshing to wash your hands after eating shrimp and crabs. When using overnight tea, it should be done in a way that does not spoil (spoils). The temperature is high in summer, and the tea is easy to rancidity, if it is left for more than 24 hours, it is best not to drink it, otherwise it will cause diarrhea.

Green tea, white tea, black tea, yellow tea, can not be drunk overnight; Among the green teas, the good tea that has been roasted, if you didn't drink it the day before yesterday, the next day, you can boil the water first, and then drink it, and don't drink it if there are no special circumstances; Black tea is a unique one of the six major tea categories, more than two years old, in case you don't finish drinking, you can also use boiling water to brew and drink it the next day. In the case of old tea, it can be drunk the next day. People who love tea, understand tea, cherish tea, love tea, meet good tea, depending on the situation, there are not many people, can't finish drinking, keep it for the next time!

Don't waste it!

In the past, there was a legend that overnight tea should not be drunk and that it was easy to get cancer if drunk, on the grounds that overnight tea contained secondary amines, which could be converted into carcinogens nitrosamines. In fact, there is no scientific basis for this statement, because secondary amines are widely found in a variety of foods, especially in pickled products, such as bread, usually contains 2mg kg of secondary amines, such as bread as a staple food, every day from bread to eat secondary amines. By drinking tea, the secondary amine consumed from tea is only 1 40 of the staple bread, which is insignificant.

Moreover, secondary amines themselves are not carcinogens, and nitrates must be present to form nitrosamines and reach a certain order of magnitude to have carcinogenic effects. Drinking tea can obtain more tea polyphenols and vitamin C from tea, which can effectively prevent the synthesis of nitrosamines in the human body and are natural inhibitors of nitrosamines. Therefore, drinking tea or overnight tea is not carcinogenic.

However, from the perspective of nutrition and hygiene, the tea soup is exposed to the air, and it is easy to breed spoilage microorganisms after being left for a long time, which makes the tea soup spoiled. In addition, the tea soup is left for a long time, and the nutrients such as tea polyphenols and vitamin C are easily oxidized and reduced. Therefore, although overnight tea is harmless, it is generally better to drink it as it is brewed.

Of course, unspoiled overnight tea still has its role in medical treatment. For example, overnight tea is rich in acids and fluoride, which can prevent capillary bleeding; If you suffer from stomatitis, tongue pain, warm rash, bleeding gums, ** bleeding, sores and abscesses, etc., you can be treated with overnight tea; If the eyes appear red or often tearful, wash the eyes with overnight tea several times a day, which can work wonders; Every morning before and after brushing your teeth or after eating, take a few sips of overnight tea, which can not only freshen your breath, but also have the effect of fixing your teeth.

Generally speaking, it is not recommended to drink overnight tea, because the brewing time is too long, and the contents of the tea are all good and bad, and drinking it is not good for the body. However, ripe Pu'er tea can be drunk overnight, provided that the tea is not finished the night before, and the tea soup is discarded, leaving the bottom of the leaves to be freshly brewed the next day.

Can drinking tea overnight cause cancer.

No. Drinking night tea will get sick, so don't.

No, the active ingredient is dissolved after the tea is left overnight.

Don't drink! It's best to make a fresh drink! As the saying goes: new tea and old wine are good for health!