Does overnight tea wash really work? Is it OK to leave tea overnight?

Tea washing your face can remove oil, and beauty has no effect.

In my personal opinion, overnight tea is generally not drinkable. Because the overnight tea has been left for too long, most of the vitamins have been lost, and the proteins and sugars in the tea soup will become nutrients for the reproduction of bacteria and molds, so it is not recommended to drink overnight tea.

There is a certain truth for the elderly in your family to tell you that you can't drink overnight tea, and in terms of their experience and experience, they know the dangers of overnight tea, so specificallyWhat are the dangers of overnight tea? Let me explain it to you in detail.

Tea contains tea polyphenols, which are easily oxidized into brown gelatins in air and waterTea rust。Tea rust contains a variety of substances such as pickaxe, lead, iron, arsenic, mercury, etc. The longer the tea is exposed to the air or left in the teacup for a long time, the more the amount of tea polyphenols oxidized into tea rust will be.

Tea rust enters the human body, binds 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. So, overnight tea can not be drunk, andTea utensils should also be scrubbed frequently

The temperature is high in summer, and the tea is easy to rancidity and taste, if it is left for more than 24 hours, it is best not to drink it, otherwise it will causeDiarrhea

4. Most of the vitamins of overnight tea have been lost due to too long time, andProteins and sugars in tea have become nutrients for bacteria and molds to multiply, so they should not be drunk.

Overnight tea, that is, the remaining tea left overnight after brewing tea leaves with boiling water, put it overnight, the tiny particulate matter in the tea condensed and precipitated, resulting in some changes, and the mixed structure of tea and water also tended to be more stableIncreases the chance of stones in the body

The color of overnight tea is more turbid than that of freshly brewed tea, especially the original green tea, after being put overnight, it becomes very yellow, and this yellow pigment substance will enter the human body, which may aggravate the situation of dull yellow and dull complexion.

Tea stains in overnight tea will beCauses teeth to turn yellow, mottled tartar, can also cause a series of problems such as bad breath and bad breath.

Overnight tea is not well absorbed and discharged by the human body, and if you drink overnight tea before going to bed, your face may appear the next dayEdema, affecting your appearance.

Conclusion: Although drinking tea often has great benefits for the human body, and it can be beneficial to physical and mental health while tasting aromatic tea, it is important to note that overnight tea cannot be drunk, in fact, many ingredients are like this, and it is easy to breed bacteria or deteriorate when exposed to the air for a long time, so it is not suitable to be eaten overnight.

As long as it is stored properly, overnight tea is okay to use. Many people worry about nitrite production, but they don't have to. CCTV reporters have done experiments to send a cup of tea brewed for 12 hours, a cup brewed for 24 hours, and a cup of freshly brewed tea to the Beijing Institute of Nutrition Source for testing.

The results showed that the nitrite content of the tea with 12 hours and 24 hours and the freshly brewed tea did not change significantly, and the highest content was only about 1 4 of the national drinking water standard.

As for the breeding of bacteria, the sugar and amino acid content in tea is very low, and it is not a good "culture medium" for bacteria, and if the lid is closed, it is difficult for bacteria in the air to fall into the teacup, so there is no need to worry too much.

So how long can tea generally sit without spoiling? How to store tea well?

The question of how long it will spoil is not conclusive, which is closely related to factors such as the preservation environment, the condition of the tea, and the variety of tea, but if there is a peculiar smell or obvious changes in color and texture, it is better not to drink it.

It is recommended to close the container with a lid or plastic wrap for unfinished tea, and then put it in the refrigerator for storage, 8 12 hours will generally not deteriorate, after all, one of the fashionable cold brew tea preparation methods is to add cold water and tea leaves to the container, and then put it in the refrigerator to soak and extract for 8 hours.

Tea is OK overnight.

Overnight tea has neither spoiled nor tasted abnormal, and the nitrite content is very low, even lower than that of plain water, mainly because the tea contains certain tea polyphenols, which are natural antioxidants!

So, can you drink overnight tea? The answer is: Yes, of course! The only thing wrong with it may be that after leaving it overnight, the color of the tea will become darker and cloudy, and the appearance will be reduced.

However, although overnight tea is not harmful to the human body, there is a tea that does have the potential to cause cancer, and it is: hot tea!

Drinking hot tea can cause cancer, this is not a rumor, long-term drinking of hot tea in large quantities will increase the risk of esophageal cancer and stomach cancer. The World Health Organization has already listed hot food as a group 2A carcinogen! Because on the surface of the human esophagus and stomach, there is a thin layer of mucous membrane covering.

These mucous membranes are very fragile and delicate, they are effective in their ability to accept temperature, as long as the water temperature exceeds 65, it will cause mucosal burns.

Tea water left overnight cannot be drunk. Overnight tea refers to overnight tea, and the old container is not well sealed, which will cause poisonous insects to fall in or crawl over, and the protein and sugar in the soup have become nutrients for bacteria and mold to multiply. Most of the vitamins have been lost due to time, so they should not be consumed.

Answer; It is not because there are a lot of tea polyphenols in tea, these substances are easy to appear tea embroidery after long-term storage, and there are relatively cadmium iron, arsenic, mercury and other substances in tea rust. If the tea is not drunk or left in the cup for a long time, the longer it is exposed to the air overnight, the more opportunities for tea polyphenols to oxidize into tea rust, and once these substances enter the human body, they can damage the liver, kidneys, stomach and other organs. You should not drink overnight tea, because overnight tea is left for a long time, and it is easy to breed bacteria and cause diarrhea

Overnight tea generally refers to tea that has been steeped for more than 12 hours, or left overnight. Although the vitamins and nutrients of overnight tea have been lost after being placed for such a long time, in fact, as long as the overnight tea has not deteriorated, it will not be very harmful to the human body after drinking, and tea is rich in tea polyphenols and vitamin C, which is a natural inhibitor of nitrosamines, carcinogens, which can inhibit the formation of nitrite, so the statement that overnight tea can cause cancer is not established.

Overnight tea or tea that has been left for a period of time after brewing, as long as it does not deteriorate, has no toxic effect. Of course, in the summer when the temperature is high, the tea soup will spoil if left for a long time. This kind of tea, which has spoiled or even moldy, is not suitable for drinking, like other spoiled beverages.

It's best not to drink it, because after a night, bacteria will grow in the tea, and drinking those bacteria will have an impact on your stomach, and it will really outweigh the losses at that time.

Many experts have explained this problem, in fact, the so-called overnight tea is just a little longer.

If the tea is brewed in the morning, it will take much longer in the evening than overnight.

Therefore, there is no scientific reason why the overnight tea left over by the elderly cannot be drunk.

At this time, of course, the overnight tea cannot be drunk, or physical health is the most important.

No, you can wash your face with freshly brewed tea for beauty.

Apply the tea to your face and gently pat your face with your hands, or attach a cotton pad dipped in tea to your face for 2-3 minutes, then rinse off with water. If you continue this method 1-2 times a day for about two weeks, you can clearly feel the white spots on your face, because tea contains tea polyphenols, which have antioxidant effects and can prevent skin aging.

Tea can also resist radiation, especially suitable for women who use computers for a long time, can inhibit pigmentation and reduce the occurrence of allergic reactions. And green tea is the richest in tea polyphenols. Therefore, it is beneficial to wash your face with green tea. However, remember to wash your face with tea and wash it again with water.