Can you still drink boiled water overnight? Can you drink boiling water overnight

There is no harm in boiling water overnight, but if it has been left out for several days, it is better not to drink it. It is very bad to drink overnight tea, and overnight tea is easy to spoil, so it must not be drunk!

The following five kinds of water will form nitrite and other toxic and harmful substances to a certain extent, which will cause certain harm to the human body, so it is necessary to attract people's attention.

1. Aging water: commonly known as "stagnant water", that is, water that has been stored for a long time. Drinking this kind of water often will significantly slow down cell metabolism and affect the growth and development of the body for minors; Middle-aged and elderly people will accelerate aging; The incidence of esophageal cancer and stomach cancer is increasing in many places, and according to medical research, it may be related to long-term drinking of aging water.

The data show that the toxic substances in aged water also increase with the increase of water storage time.

2. Thousands of boiling water: Thousands of boiling water is water that has been boiled on the stove overnight or for a long time, and water that has been boiled repeatedly in an electric water heater.

This kind of water is boiled for too long, and the water has a high content of non-volatile substances, such as calcium, magnesium and other heavy metal components and nitrite. Drinking this water for a long time will interfere with people's gastrointestinal function, causing temporary diarrhea and bloating; Toxic nitrite can also cause hypoxia in the body, and in severe cases, coma, convulsions, and even death.

3. Steamer water: Steamer water is leftover pot water such as steamed buns, especially the steamer water that has been used repeatedly for many times, and the nitrite concentration is very high. Drinking this water, or boiling porridge with this water, can cause nitrite poisoning; Scale often enters the human body with water, and can also cause diseases of the digestive, nervous, urinary and hematopoietic systems, and even cause premature aging.

4. Unboiled water: The tap water that people drink is treated by chlorination and sterilization. 13 kinds of harmful substances can be separated from chlorine-treated water, among which halogenated hydrocarbons and chloroform also have carcinogenic and teratogenic effects.

When the water temperature reaches 90, the halogenated hydrocarbon content rises from 53 micrograms per kilogram to 177 micrograms, which is more than twice the national drinking water sanitation standard. Experts point out that drinking unboiled water increases the likelihood of bladder cancer and rectal cancer21-38. When the water temperature reaches 100, these two harmful substances will be greatly reduced with the evaporation of the vapor, if you continue to boil for 3 minutes, it is safe to drink.

5. Re-boiling water: Some people are accustomed to re-boiling the remaining warm boiled water in the thermos before drinking, the purpose is to save water, coal (gas) and time. But this "savings" are not enough.

Because the water is boiled and burned, the water evaporates again, and the nitrite will rise, and if you drink this water often, the nitrite will accumulate in the body and cause poisoning.

Many people have a cool bottle of water at home, and the cool boiled water in it can be drunk at any time. However, this convenience can pose health risks. If you don't finish it that day, be sure to pour it out.

This is because nitrogen-containing organic matter in boiled water will be continuously decomposed into nitrite, and at the same time, it is inevitable that the intervention of microorganisms will accelerate the decomposition of nitrogen-containing organic matter. The harm of nitrite to the body is well known, it has a strong ability to bind to hemoglobin in the body, which can hinder the normal oxygen transport function of the blood. Therefore, it is best to drink boiled water on the same day.

In addition, many families are now accustomed to drinking bottled water, and seemingly well-sealed bottled water should be drunk within three or four days. Because, after the bottled water is opened for a long time, bacteria will slip into the water inlet, and the water dispenser will form negative pressure when the water is discharged, and it will inevitably inhale part of the air, and the bacteria and microorganisms in the air will also "take advantage of the void". If you don't drink it in a short period of time, the bacteria will exceed the standard and the purified water will no longer be pure.

The overnight water here does not refer to the water in the water dispenser, but the water poured in the cup overnight The overnight water does not only mean that the nutrients in it are reduced, but that due to the long-term placement, the water has the generation of substances that can be harmful to the human body, and the overnight boiled water can not be drunk, and the tea is even more undrinkable.

It's best to drink less or no at all!! The boiling water team who often drinks overnight is not in good health! Generally, if you don't drink it for 2 or 3 days, you should pour it out Satisfied.

Boil tap water for 3 to 5 minutes, which has the lowest levels of harmful substances such as nitrite and chloride, and is best for people to drink. Drink less overnight boiled water: nitrite can form carcinogenic nitrosamines in the human body.

Some experts have found that the nitrite content in boiled water is higher than that in raw water. Moreover, the nitrite content of boiling water that has been boiled for too long or more than 24 hours has been boiled for many times. After 24 hours of boiling water, the nitrite content is twice that of the first boil.

Chinese residents have the habit of drinking boiled water, and it is best to drink it freshly or only drink the boiled water of the day. Also do not drink boiled water that has been boiled for too long.

OK. Overnight boiled water will contain certain bacteria, but not a lot, and drinking cold boiled water has many benefits for the body. If boiled water is stored for more than two days, it is recommended not to drink it, but overnight 8-12 hours will not cause harm to the body. <

1. Overnight boiled water can be drunk for hiking. Overnight boiled water will contain certain bacteria, but not a lot, and drinking cold boiled water has many benefits for the body. If boiled water is stored for more than two days, it is recommended not to drink it, but overnight 8-12 hours will not cause harm to the body.

2. Boiled water, also known as cool boiled water and frozen boiling water, is the most drunk edible water in ordinary life. It is light and tasteless, extremely ordinary, but it has a very important conditioning effect on the physiological mechanism of the human body. For middle-aged and elderly people, it can not only dilute the blood, reduce blood viscosity, promote blood circulation, but also reduce the risk of blood clots, and prevent the occurrence of cardiovascular and cerebrovascular diseases during the "peak period" of heart disease.

1. Overnight boiling water can no longer be drunk, and it is said that drinking a cup of cold and white water after getting up in the morning is good for health. Many people like to dry a glass of boiling water the night before and drink it again the next morning. This is okay when the temperature is not high; For example, in summer, when the temperature exceeds 30 degrees Celsius, the air humidity is high, and the bacteria multiply quickly, the cold boiled water overnight will lose its biological activity, and it is very easy to be contaminated and cause diarrhea.

You can pour half a small cup of boiled water the night before, then cover the lid, and mix the boiling water with warm water the next morning. In addition, the time of cooling and boiling should not be too long, and the boiling water boiled on the same day is best drunk on the same day.

2. After three days of storage of boiled water, nitrous acid can be produced, which can make people dizzy, nausea and vomiting after drinking. If it is stored for a longer time, it will combine with amines and become ammonium nitrite, which will promote stomach cancer, liver cancer, and esophageal cancer. Bottled mineral water and purified water are the same for more than 3 days, and bacteria multiply in large numbers, which is not as good as tap water.

3. The nitrite content in the water body is very small, and it is usually oxidized to nitrate, so this statement is unfounded. In fact, boiling water is a good habit of the Chinese people, which can greatly protect the health of the body, play a good role in disinfection, and kill the pathogenic microorganisms. Therefore, boiling water is necessary for China, especially when the drinking water safety is not particularly good.

After getting up in the morning, drink a cup of cold and white, which is good for health. Many people like to dry a glass of boiling water the night before and drink it again the next morning. This is okay when the temperature is not high; For example, in summer, when the temperature exceeds 30 degrees Celsius, the air humidity is high, and the bacteria multiply quickly, the cold boiled water overnight will lose its biological activity, and it is very easy to be contaminated and cause diarrhea.

You can pour half a small cup of boiled water the night before, then cover the lid, and mix the boiling water with warm water the next morning.

1. Boiled water can be drunk overnight.

2. Overnight boiled water contains certain bacteria, but not a lot, and drinking cold boiled water has many benefits for the body, and there is no guarantee that there are no bacteria in the water, just a matter of how much. If you leave plain water for more than two days, don't drink it, but overnight, that is, 8-12 hours, is no problem.

The so-called undrinkable water overnight is just a folk experience. If you boil water at eight o'clock in the morning, you can still drink it in the afternoon, and if you boil water at eight o'clock in the evening, you can't drink it the next day? So it's still okay to drink.

However, it is not recommended to drink plain water that has been left for too long (unless it is sealed and stored), because the water slowly cools after boiling, and the bacteria in the air enter the water and multiply quickly, and the longer it lasts, the more it will be. So I don't think you should drink the water before two days, because it may have diarrhea.

Overnight boiled water really can't be drunk. Because tap water is boiled for 3 to 5 minutes, the content of harmful substances such as nitrite and chloride is the lowest, and it is best for people to drink. Some experts have found that the nitrite content is significantly higher when boiling water repeatedly or for too long such as boiling water for more than 24 hours.

After 24 hours of boiling water, the nitrite content is twice that of the first boil. Therefore, it is best to drink boiled water or drink only the boiled water of the day.

But it also has to be judged according to the climate, just like the temperature is always high in summer, it is easy to produce a lot of bacteria, it is easier to cause diarrhea and diarrhea, so try not to drink overnight water in summer.

Boiling water cannot be drunk overnight is a false proposition. It is said that nitrite will be produced, but it is not. Boiling water overnight is drinkable.

Overnight water is drinkable, many people feel that overnight water is not drinkable, they feel that there are many harmful substances in the overnight water, because in the process of overnight water has some chemical reactions, producing more harmful substances, and even carcinogens, so these people dare not drink overnight water. However, scientific studies have shown that after a night of water, if it is pure water, there will not be much chemical reaction, and no harmful substances will be produced. Therefore, the overnight water is drinkable, not only the overnight water is drinkable, even if it is a day, as long as it is well protected and there is no dust, it can be drunk if it falls inside.

Scientific studies have found that even after 2 or 3 days of boiled water, the harmful substances produced in it are very limited.

Boiled water left overnight is drinkable.

The chemical composition of the boiled water overnight did not change significantly, such as pH and nitrate. However, if the overnight stay is too long, more than 72 hours, do not drink, because the boiled water is left for too long, the nitrite content will increase, if you drink too much at one time, it is easy to cause some digestive tract adverse reactions.

When choosing boiled water, try to choose the day's fresh boiled water, because boiled water is an important substance to promote human metabolism, if the water quality is not good, it will affect the health of the human body.

Do not drink, overnight boiled water will have a large number of harmful substances, and will also generate a lot of bacteria, if you often drink overnight boiled water, it will have a certain impact on the body.

Boiled water can be drunk overnight, and boiled water left out for 24 to 48 hours is drinkable.

Yes, some people said that overnight boiled water is poisonous, but in fact, this is all rumors, and overnight boiled water can be reconciled.

Can you still drink boiled water overnight? Experts give such an explanation, and after reading it, it subverts your cognition.