Can you drink water that has been reheated repeatedly? Whether or not you can drink water that has b

In general, water that has been reheated repeatedly is not recommended to drink. This is especially true for untreated water such as river water and well water. These waters are hard water, which contains a lot of minerals, salts, etc., and repeated heating will increase the concentration of those substances that are not easy to volatilize and precipitate, and invisibly, the water we drink is no longer healthy boiled water.

Repeatedly heated water is far from the near and not near, now most of our drinking water is bottled water, this water is filtered, the harmful substances contained in it have basically been filtered out, and the content of minerals and other substances is also very small, so under normal circumstances, even if it is repeatedly heated, it will not appear, harmful substances to the body, and usually we will not heat bottled water, only in winter, will the heating of the water dispenser be turned on. However, there are still experiments that prove that repeatedly heated bottled water can also produce nitrite harmful substances. However, the bottled water is purified, and even if it produces harmful substances, it is very limited, so we don't have to worry too much.

Moreover, in life, it is generally unlikely that we can achieve special situations like experiments. <>

It is not advisable to reheat the water for another reason, as it may cause limescale to dissolve into the water, which can have an impact on our health. Of course, these are talking about tap water and the like. If it is in the wild, the water in the wild is generally hard water, there will be many other impurities visible to the naked eye, and there may be bacteria and viruses, etc., so for these waters, we must first simply filter it until the naked eye can see no obvious impurities, and then boil it to drink, but even if it is so cool and white, it is still not recommended to heat it repeatedly, because it is not clear about the status of local water quality, repeated heating will concentrate the concentration of non-volatile substances in the water, which will lead us to introduce excessive harmful substances.

Repeatedly heated water can be drunk, but it is not recommended to drink it, after all, we should try to avoid factors that affect our health.

Water is an indispensable and important substance for human survival People can go without food for a day, but they can't go without water for a day Many people say that you can't drink water that has been heated and boiled many times Is this really the case?

Repeatedly heated water should not be used, they already have a lot of toxins. Drinking it makes people feel like vomiting and dizziness, which is super uncomfortable.

It can be drunk, but it is not recommended to drink it regularly. Because the water is heated repeatedly, the alkaline substances in the water will increase, and regular drinking will lead to an imbalance in the pH level in the body.

Yes, even if it is heated repeatedly, the nitrite content in the water is very low and will not affect the human body.

Rest assured, even if it has been boiled for more than 20 times, the nitrite content in boiled water is still far lower than the national nitrite content standard for drinking water (1mg l), which is very safe.

There is a saying that repeatedly boiled water is high in nitrite and cannot be drunk.

In fact, nitrite in water is not produced out of thin air, but is generally converted from the original nitrate in the water. There is very little nitrate in qualified drinking water; However, if the water source is contaminated with nitrogenous organic matter, nitrate levels may increase. Generally speaking, the reason for the increase of nitrite caused by repeated heating of drinking water is mainly due to the evaporation and concentration of water, but the total amount does not increase.

In 2011, Harbin Institute of Technology conducted relevant experiments on this. The researchers took six beakers, raw water and water that had been boiled 1 to 5 times, and determined nitrite, nitrate and other substances. The results showed that the presence of nitrite was not detected after repeated boiling of tap water that met the national standard, and even if a certain amount of nitrite was artificially added, its content did not change during the boiling process.

Repeatedly heated water can be drunk. Repeatedly heated and boiled water is called thousand boiling water, and there is no case of discomfort caused by drinking thousands of boiling water, and all kinds of old fire soup are repeatedly boiled, and people will not feel uncomfortable after eating. However, after 5-6 days of early boiled water, there is a risk of increased nitrous acid content due to the effect of bacteria, so it is not recommended to drink boiled water that has been placed for too long.

Repeatedly heated water can be drunk. Repeatedly heated and boiled water is called thousands of boiling water, and there are no cases of discomfort caused by drinking thousands of boiling water, and all kinds of old fire soups are repeatedly boiled and boiled, and people will not feel uncomfortable after eating. However, after 5-6 days of boiled water, there is a risk of increased nitrite content due to bacterial action, so it is not recommended to drink boiled water that has been left for too long.

Generally speaking, after the boiling water is heated frequently, part of the nitrate in the water will be converted to nitrite. But nitrite poisoning generally requires more than 200 mg, we rush to count the eggplant we usually eat, the nitrite content in carrots is far greater than the content of boiling water heated frequently, drink boiling water and don't have to be afraid.

Therefore, water that has been heated repeatedly is drinkable.

Repeatedly heated water can be drunk.

There is no scientific basis for the claim that repeatedly heated water is harmful to human health.

The water that people drink comes from natural surface water or groundwater. Because nitrate and nitrite are easily soluble in water, nitrate and nitrite in surface water may also slowly seep into groundwater; In addition, nitrate contained in water sources may be contaminated by microorganisms and turn into nitrite.

Although nitrite causes cancer, it is not easy to cause cancer through nitrite in water. Generally, the one-time safe intake of nitrite for the human body is milligrams per kilogram of body weight, and the sanitary standard for drinking water stipulates that the nitrite content does not exceed 10 milliliters, and if the disposable drinking water does not exceed 10 liters, then it is safe.

The experimental conclusion from a university shows that with the increase of boiling times, the nitrite content in water has no obvious upward trend. The nitrite content of all water samples is lower than the nitrite content limit of 10 milliliters specified in China's "Sanitary Standard for Drinking Water" (GB5749-2006).

The nitrite content of boiling water is even lower than that of mineral water.

OK. Theoretically, repeated boiling of water will produce nitrite, a highly toxic substance, which should not be continued to be consumed. However, to produce nitrite, it usually needs to be boiled dozens or hundreds of times, and this is almost not the case in daily life, so the water that has been boiled several times can be drunk.

Theoretically, repeated boiling of water will produce nitrite, a highly toxic substance, which should not be continued to be consumed. However, to produce nitrite, it usually needs to be boiled dozens or hundreds of times, and this is almost not the case in daily life, so the water that has been boiled several times can be drunk.