Can boiled water be boiled again?

OK; However, re-boiling water can cause nitrite in the water.

The content exceeds the standard. As we all know, excessive or excessive nitrite in water can cause fatigue, fatigue and drowsiness to varying degrees.

Coma, bruising all over the body, decreased blood pressure, abdominal pain, diarrhea, vomiting, and over time can also cause malignant diseases. The way to prevent boiling water pollution is simple: resolutely put an end to the reuse of boiling water and re-boiling. In particular, the boiled water mentioned below is not drinkable.

1.boiling 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.Packed in a thermos flask.

boiling water for the day;

5.Boiled water left over from steamed meals and other foods.

People are accustomed to boiling the remaining warm water in the thermos again before drinking, the purpose is to save water, coal and time. But this kind"Save"Not enough to take. Because the water is boiled and burned, so that the water evaporates again, it is equal to drinking"A thousand boiling waters"。

A thousand boiling water is water that has been boiled on a stove overnight or for a long time, as well as water that has been boiled repeatedly in an electric water heater and water from a steamer that has been used many times. This water is boiled for too long, and the water has a high content of non-volatile substances, such as calcium, magnesium and other heavy metals and nitrite.

Drinking this water for a long time can cause nitrite poisoning. Therefore, it cannot be boiled twice and then drunk again.

Don't, boiling again will produce some carcinogens.

Of course, heat converts water into steam, all the time.

Of course it can be boiled again, as long as there is energy .

Categories: Gastronomy Cooking.

Problem description: It's just that the boiling water is cold, and there is no difference between boiling it again and boiling it again.

Some people say that if you cook it twice, you can't drink it.

Analysis: In order to save fuel, some families often boil warm water again, which is not in line with drinking water hygiene. Experiments have proved that repeated boiling of water will turn the nitrate substances in the water into toxic nitrite.

It causes the hemoglobin in the body to turn into nitrosohemoglobin, making it lose its ability to carry oxygen.

Drinking a certain amount of water containing this substance will cause people to have nitrite poisoning after ten minutes or one to three hours, and there will be tissue hypoxia, palpitation, shortness of breath, lips and nails, and even cyanosis of the whole body, and there are symptoms such as dizziness, headache, drowsiness or irritability, shortness of breath, and blood pressure travel, which has a great impact on human health.

At the same time, after nitrite enters the human body, under the action of gastric acid, it will also generate a kind of toxic nitrous ammonia.

Five types of boiled water that cannot be drunk.

The following five types of boiled water should not be drunk:

It has been boiling on the stove for a long time, and the drinking water is already lukewarm.

It had been in a thermos for several days, and it had become stale warm water.

After repeated boiling, the boiling water remains.

Boiled water that has been reboiled overnight and not reboiled in a boiled water boiler.

Foot water after steaming rice and meat.

The reason why these boiled water is not suitable for drinking is simply that the trace components such as calcium, magnesium, chlorine, and heavy metals contained in boiled water have increased after repeated boiling.

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

Hello, after boiling water, boiled for 13 minutes, the companion code clock is generally not toxic, and it will not cause harm to the human body. Although repeated boiling of boiling water will increase the nitrite content in drinking water, it will generally not cause significant harm to the human body in the case of normal drinking water volume. Water usually contains nitrate, during the heating process, nitrate will form nitrite due to high temperature, repeated boiling of water will increase the nitrite content, excessive intake of nitrite may lead to symptoms such as poisoning, chest tightness, difficulty breathing, asthma, etc.

In the case of normal water intake, nitrite poisoning is not caused. Therefore, repeated boiling of boiled water generally does not cause obvious harm to the human body, and it can be drunk with confidence, but it is still recommended not to drink boiled water repeatedly for a long time. Thank you for your inquiry, I'm glad to answer for you, I hope it can help you, I wish you:

Have a happy life, work smoothly, be safe and healthy!

Water is the "source of life" and the most basic of the seven nutrients. People cannot live without water for a day, and the value of water to the human body should not be underestimated. Some people say that "freshly boiled water" can not be drunk, the chlorine content is very high, easy to harm the health of the body, many people in the real society like to drink boiled water, think that it is beneficial to the body, indeed, water as the source of life, and our metabolism is closely related, the ancients said:

Good is like water, in fact, ancient life was born in water.

.The sound of the kettle is the sound of bubbles in the water rising when heated and bursting on the surface of the water, and the temperature at this time is only 80. After a while, the water does not sound, but boils and overflows, and gas is sprayed from the spout, in which chlorine combines with the residual organic matter in the water to produce halogenated hydrocarbons, chloroform and other carcinogenic compounds.

The correct way to do it: first take the tap water out and leave it for a while before boilingOpen the lid when the water is about to boil;Finally, wait 3 minutes after the water is boiling before turning off the heat.

Drinking hot boiled water that has just been boiled is not good for the body, it is too hot, it will burn, in addition to water and soup and noodles, you can't drink just boiled, you have to dry it for a while before drinking, if you often drink it, it is not good for the esophagus, and it will cause esophagitis for a long time. Several foreign experts and tens of millions of clinical joint trials have shown that whether it is urban or rural, whether it is a large iron pot, an electric kettle or a tap water dispenser, you must not drink it directly!

The correct way to boil and drink water should be to connect the tap water first, and then leave it for a while before boilingThen open the lid of the kettle when the water is about to boil, and finally wait for 3 minutes after the water is boiled before turning off the fire, which can reduce the chlorine content in the water to the safe drinking standard, which is real boiling water. Drinking hot boiled water often is not good for the body, in addition to water and soup and noodles, you can't drink just boiled, you have to dry it for a while before drinking, if you often drink hot water, it is not good for the esophagus, it will cause esophagitis for a long time, and it will cause esophageal cancer in serious cases.

When the water boils, it is boiled, and when it is boiled, it can be drunk immediately.

Although tap water contains trace elements such as chlorine, chlorine ammonia and hypochlorous acid, the high temperature after the water is boiled will decompose all the chlorine, chlorine ammonia and hypochlorous acid, leaving only minerals and trace elements needed by the human body. Therefore, boiled tap water is drinkable, but to properly filter out these trace elements, you also need the correct steps to boil water.

It is recommended that when you boil water, you can let the tap water stand for a while before boiling, do not rush to turn off the fire when the water is boiling, and then turn off the fire after boiling for three minutes, so that the chlorine content in the water can be reduced to a safe drinking standard, so that the boiled water is the real drinking water.

Yes. After boiling, you can cook it for a while.

When boiling water, you can let the tap water stand for a while before boiling, do not rush to turn off the fire when the water is boiling, and then turn off the fire after boiling for three minutes, so that the chlorine content in the water can be reduced to a safe drinking standard, so that the boiled water is the real drinking water.

It is okay to boil the water a second time and boil it pure, but this boiled water cannot be left overnight, it should be the same day. The concentration of minerals in boiled water boiled twice is completely inadequate. The boiling water that really cannot be drunk is 1,000 boiling water, and after the water is repeatedly boiled, a large number of mineral components will remain in the remaining water, which can no longer meet the standard of drinking water.