Can I drink overnight tea? Is there any harm?

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. Beg.

Can drinking tea overnight cause cancer.

Overnight tea refers to: the tea soup brewed on the first day is put on the next day, and the time is long after one night, which is called overnight tea. In the past, it was said that drinking overnight tea caused cancer, and experts in China's food industry have long concluded that it will not cause cancer.

Normally, overnight tea is used to gargle or drink in the morning, but from a nutritional and hygiene point of view, the vitamin C and other nutrients in the tea soup will be reduced due to gradual oxidation after the tea field has been left for a long time. In addition, at high temperature, placed for a long time, the proteins and sugars in the tea are the medium of bacteria and molds, which are easy to breed molds and bacteria, resulting in the deterioration and corruption of the tea soup, and of course the spoiled tea soup cannot be drunk. Whether overnight tea can be drunk depends on personal understanding of "overnight tea", generally speaking, from the perspective of nutrition or tasting, tea brewing and drinking should be brewed and drunk.

Fresh overnight tea can be used to cough or drink a few sips, but there is no nutrition and taste at all, and it is not suitable to brew again, the proverb says: "Tea can be drunk more, not more brewing"; That is to say, the amount of tea should not be too much at one time, but it should be brewed in batches and exchanged many times.

Overnight tea can harm gastrointestinal health, induce stones, cause cancer in the body, and affect digestive function, which are all harms of drinking overnight tea.

Overnight tea is a relatively long brewed tea, this physique tea is deteriorated, easy to breed some bacteria, will harm human health, in addition to overnight tea will also produce a large amount of tannic acid, this substance and oxalic acid in other foods will produce substances that are not good for the human body, will also harm human health, easy to make stones high, so usually drink tea as soon as possible after brewing, do not drink overnight tea.

1. Endangering gastrointestinal health.

Overnight tea will endanger human gastrointestinal health, because overnight tea is stored for a long time, easy to breed mold and a variety of germs, people drink this health tea after the state of mold and bacteria into the body, easy to endanger intestinal health, intestinal inflammation, but also let people have abdominal pain and diarrhea and other uncomfortable symptoms, human gastrointestinal function will be seriously impaired, can not digest other food normally.

Second, let the incidence of stones be high.

Inducing stones is also the main harm of drinking overnight tea, because overnight tea contains a large amount of tannic acid, people will absorb sulfuric acid after drinking overnight tea, it will react with oxalic acid in other foods, and produce some substances that the human body cannot digest and absorb, this substance will produce stones after accumulation in the body, which will make gallstones and urinary tract stones high, and the health of the body will be seriously damaged.

3. Cause cancer in the human body.

People drink overnight tea and lead to subdivision cancer, because lotus leaf tea will produce some carcinogenic ingredients in the process of soaking for a long time, and the human body will cause cells to become cancerous after absorbing these substances, so that the incidence of cancer is high, which is not good for health, and some heavy metals will be produced in overnight tea, which will also endanger human health after they enter the human body, and will make some blood diseases appear. Overnight tea is harmful to the human body, and there are many harms, but this is for those spoiled overnight tea, if the tea soup is overnight but not spoiled, it can still be drunk and there is no obvious harm, but at this time, the nutrients in the tea soup have been lost a lot, and drinking it again will not have a good health effect.

Try not to drink overnight tea, because some bacteria may have been consulted in the overnight tea, but overnight tea can be used to gargle and celebrate the mouth, which can prevent bad breath. It can also be used to wipe the eyes, and it can play a bright role in the car leather.

Overnight tea is still healthy for people who are blind to stomach merit and can be cautious, but if the gastric mucosa is damaged, these people with gastritis can not drink overnight tea Qingsuikong, the concentration of overnight tea is very strong, which will increase the burden on the stomach.

I don't think you can drink it because overnight tea breeds a lot of harmful bacteria.

The state didn't stipulate it, and the brick family said it couldn't.

Stockings have seen all the people who don't drink overnight tea.

Can you drink overnight tea? This question is a question mark for the time being.

First of all, we need to know that overnight means that certain items are spent overnight. The English equivalent word is "overnight". This is a term used by Westerners, who generally leave work at 5 p.m. and go to work at 9 a.m. the next morning, so overnight stay generally refers to 16h.

From a food science point of view, overnight is not a problem. The important thing is the specific time and the type of food. The general ingredients should be more than 6 hours, cooked food, if left for a long time, the nitrate in the dish will be reduced to nitrite, it is not recommended to eat; If you leave another food for a long time, it will also breed bacteria, so it is not suitable to eat it for a long time.

Straight to the point, what about tea?

You can drink it!!

Overnight tea can be drunk if it does not deteriorate, and it usually does not cause damage to the human body. The taste of overnight tea may be somewhat different from that of freshly brewed tea, but it generally does not add too many toxic or harmful substances.

However, it is recommended that people who are unwell do not drink spoiled overnight tea to avoid gastrointestinal discomfort such as diarrhea and abdominal pain.

It is rumored that a large amount of nitrite will be produced in overnight tea, and drinking too much may lead to the occurrence of cancer, but according to experiments, whether it is freshly brewed new tea, or tea left for 12 hours and 24 hours, the nitrite content is lower than the national drinking water health standard. And sometimes a cup of boiled water and a cup of tea are left at the same time for one night, and the nitrite content in the tea may be less than that of boiled water. It is usually because there is a relatively large content of ingredients called tea polyphenols in tea, and some vitamins, which are natural antioxidants and play a certain role in hindering the formation of nitrite.

The number of microorganisms left over from the overnight tea after drinking will increase due to the contact between the lid and the hands and mouths during the drinking process. Tea is exposed to the air, and it is easy to breed spoilage microorganisms after a long time, which makes the tea soup spoiled, and the nutrients such as tea polyphenols and vitamin C are easy to oxidize and decrease. Therefore, although overnight tea is harmless, it is generally recommended to drink it as it is brewed.

But these are for teas that sit for 12 hours and 24 hours.

Take a chestnut: I soaked it last night5 Year Extra Wilderness Silver Needle

I drank this tea twice, and then packed up and prepared to go to bed without drinking it.

I drained the tea, covered it, and put it there.

I woke up early this morning, and on the weekend, it's a waste not to drink tea.

Just soak it. Before soaking, moisten him.

Knock on the key point: overnight tea, moisten it first, quickly make the soup, look at the soup color, the wilderness silver needle soup color, and blanch the cup.

This cup of tea has not been left for 12 hours. You say to drink or not to drink.

In fact, whether the overnight tea can be drunk or not is a false propositionIt should be asked whether overnight tea is worth drinking。Such an expensive tea, I am reluctant to pour it anyway, in fact, there is no need to worry about it. Drink it and you're done!!

However, I still recommend that this kind of thing be done sparingly, and try to drink a moderate amount of tea a day. Tea packaging is basically one piece of one brew or one package of one bubble, which is convenient and appropriate. Drink appropriately. Choose your tea. Drink good tea!

What is the harm of overnight tea to our body Many people like to drink tea in daily life, because different tea brewing methods are different, so the taste will be different, so why not drink overnight tea? What does overnight tea mean? As people pay more and more attention to health preservation, the efficacy of tea has been recognized by the world.

However, there has been a rumor circulating on the Internet that overnight tea cannot be drunk, and it will cause cancer if drunk. So is that really the case?

<> because tea contains tea polyphenols, it is easy to oxidize into brown jelly in air and water, which is called tea rust. Tea rust contains pick, lead, iron, arsenic, mercury and other substances. The longer tea leaves are exposed to the air, the more polyphenols oxidize to rust.

After tea rust enters the human body, it binds to and precipitates with proteins, fats and vitamins in food, hindering the absorption and digestion of nutrients. Once these oxidizing substances enter the human body, they can also cause inflammation, ulcers, necrosis and other lesions in organs such as kidneys, liver, and stomach. Therefore, overnight tea should not be drunk, and the tea set should be scrubbed frequently.

First of all, you can't drink overnight tea. If it is white water overnight tea, don't drink it too cold, no matter what kind of tea, don't drink it while it's cold (personal experience is that drinking cold water doesn't quench your thirst), of course, it's okay to drink a cup of herbal tea to go to the fire in the hot summer. In addition, tea soaked in silver-plated containers should not be drunk overnight, because some components of tea and silver-plated (mercury) produce toxic substances when heated (hot water).

There is also the fact that after the tea water is cooled, it cannot be drunk overnight. This is because there will be a lot of bacteria in the tea water after cooling, and the cooled tea water will cause diarrhea and discomfort. My personal experience is that the tea in the thermos flask (iron, ceramic, stainless steel, red clay, purple sand liner) can be drunk overnight when the water is not cold, and the longest time, I have drunk tea that has been stored for more than 48 hours.

At that time, the water was still hot, and there was no discomfort after drinking it.

Cause microbial or bacterial growth: Overnight tea is left for a long time and is easy to breed bacteria, so it may affect digestive function and cause diarrhea, abdominal pain, vomiting, etc.

Therefore, it is important to drink plenty of fresh tea and avoid overnight tea.