Can you drink boiled water overnight, can you drink boiled water overnight

Overnight boiled water is drinkable. Some people think that boiled water cannot be drunk overnight for two reasons: first, a large number of bacteria are present in it.

2. Overnight boiled water is carcinogenic. Actually, it's all wrong. Overnight boiled water contains a certain amount of 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. There is also boiled water after repeated decoction before it can cause cancer, but it must be decocted more than 35 times, which is not possible for ordinary families. Therefore, overnight boiled water is not harmful to the body, and it can be boiled again if necessary, and it can be drunk after boiling.

Benefits of plain water:

**。Drinking water is OK because it doesn't contain any sugar and can help people become slimmer.

Improves the body's resistance.

Sufficient water is conducive to the body's excretion of toxins and the body's metabolism, so it will also be of great help to reduce various diseases and improve the body's resistance.

Beauty and beauty. We often say that drinking more water can detoxify and nourish the skin, because drinking water can help the body's urine to be discharged, and in this way, the toxins in the body can be discharged, which can reduce the pigmentation of **spots.

Promotes the recovery of the body.

When people have a cold, or a sore throat or cough, doctors will always suggest that we must drink more water, in fact, there is a certain scientific truth, drinking more water is conducive to the discharge of toxins from the body, and promote the excretion of harmful substances.

Refresh oneself. When a person is not hydrated, they will be particularly prone to fatigue, so proper hydration of the body can help refresh the mind, especially for sedentary office workers, as well as people who have been in high temperatures for a long time, it is very effective.

Promotes sleep. For people with long-term insomnia, or after staying up late and working overtime, drinking a glass of warm water, just like soaking your feet in hot water, will help you fall asleep faster.

Annoyance. When you are unhappy, the adrenaline in your body will rise, and if you drink enough water, it will help to expel these factors that make you feel bad, which will help you maintain a good mood.

Yes, but it's best to drink boiled water on the same day.

Regarding overnight water, some people have done such experiments, and the boiled water that has been placed for two or three days is compared with the boiled water of the day for chemical testing, and the indicators of overnight water are within the normal range, that is to say, overnight water is drinkable and will not easily cause cancer.

But even so, experts still recommend drinking as little water as possible overnight, because it can breed bacteria if left for a long time, and the nitrite content in the water rises, which can hinder the normal oxygen transport function of the blood. Therefore, it is best to drink boiled water on the same day.

Many people think that overnight water cannot be drunk, and many people think that it can be drunk, but can it be drunk or not?

Can't you drink water overnight? In fact, it can be drunk, because there will not be a large amount of nitrite in the water, and it is still far from exceeding the standard, so it is drinkable.

Usually, it is okay to drink plain water overnight in a thermos or in a closed container with a lid. However, it is not recommended to drink water that has already been drunk overnight, because the bacteria in the mouth will remain in the water, and there is a risk of excessive bacteria when drinking it overnight.

There is news that the water that has been boiled for a long time cannot be drunk. Overnight boiled water and boiled water, as well as non-same-day boiled water in thermos flasks, contain a substance nitrosamine, which is a strong carcinogen. Some readers are worried:

Every morning when I wake up, I pour a glass of hot water from the thermos flask and drink it, don't I drink carcinogens every day?

In fact, the formation of nitrosamines is not so easy, it requires certain precursor substances and environmental conditions. The most susceptible to the formation of nitrosamines is the gastric juice of humans and animals, and nitrosamines can only be produced when the acidity of the gastric juice is not enough (i.e., the pH value is high). This phenomenon is also called endogenous nitrosation.

The process is that the nitrate ingested by the body is formed nitrite under the action of nitrate-reducing bacteria in the digestive tract, and the nitrite combines with amines, the products of protein breakdown (usually secondary amines, tertiary amines and other amines in food that are prone to nitrosation) to form nitrosamine compounds with potential carcinogenicity.

There are several indispensable prerequisites for these processes, namely nitrates, amines, and nitrate-reducing bacteria, all three of which must be present at the same time. The bacteria in the boiled water are basically inactivated, and if the nitrate content of the water itself is in line with the national standard, and it is not polluted by microorganisms and protein substances again after boiling, there is no basis for the formation of nitrosamines. Therefore, there is no scientific basis for the concern that nitrosamines will be produced just overnight.

However, long-term intake of local water sources with high nitrate levels (e.g., groundwater in areas where nitrogen fertilization is heavily applied) is associated with high health risks. Because nitrate is easily reduced to nitrite under the action of enzymes in the mouth, intestines and stomach, and then forms carcinogenic nitroso compounds. Studies have shown that green tea can significantly inhibit the formation of nitrosamines in the digestive tract.

Therefore, if the nitrate content in the drinking water is high, it is recommended to drink more green tea to reduce the risk of cancer. （

The so-called overnight means that more than 24 hours have passed, not simply overnight. Therefore, if it is boiled water for no more than 24 hours, it can be drunk.

It is better not to drink, the nitrate content is high, which is not good for the body.

Shui Changdong - blog "Can you drink boiled water overnight?" Six types of water that must not be drunk". It's very detailed. Generally, don't drink it again overnight.

Hot water that is more than 24 hours old cannot be drunk.

How long is your overnight? 6 hours? Do you still drink the water after 6 hours of the day?

You can drink less. It is best to drink freshly boiled water.

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.

The re-boiling of drinking boiled water will cause the nitrite content in the water to exceed the standard, and the excessive and excessive nitrite in the water can cause physical fatigue, fatigue, drowsiness, coma, bruising, blood pressure dropping, abdominal pain, diarrhea, vomiting, and malignant diseases over time. The way to prevent boiling water pollution is simple: resolutely put an end to the reuse of boiling water and re-boiling.

Five types of boiled water that you can't drink: 1boiling water that has been boiled on the stove for a whole night or for a long time, and is already lukewarm when drunk; 2.

boiled water in an automatic water heater that is reboiled overnight; 3.residual boiling water that has been boiled several times; 4.The water in the thermos is no longer the water of the day; 5.

Leftover boiling water from steamed rice, meat, and other foods.

No, it's better not to drink it, I'm afraid of nitrite.

You can't drink it, and you can't drink it with a thousand boiling waters.

"Overnight water can't be drunk" is mainly because overnight water contains chemicals such as zero alcohols, oxyphenols, and hydroxyhydrogen, which can cause diarrhea and even produce carcinogens nitrite.

No, bacteria can grow in plain water overnight.

When the water is boiled, it is 100 degrees Celsius, which has killed the bacteria, and the water temperature above 80 degrees is not suitable for bacteria, when the water temperature drops, below 60 degrees Celsius, it begins to be conducive to the growth of bacteria, the closer to room temperature, the more conducive to the breeding of bacteria. In addition to temperature, the growth of bacteria is also related to the surrounding environment. In summer, the weather is humid and the ambient temperature is high, which is particularly conducive to the growth of bacteria.

Therefore, from the perspective of bacterial reproduction, boiled water can be drunk overnight, and the number of colonies does not exceed the standard. In order to reduce the chance of poisoning, it is best not to drink overnight boiled water in summer, and it is best to place overnight water in a thermos cup in winter, because the high temperature is not conducive to the reproduction of bacteria.