Drinking fountains burned many times to drink water, in the end what harm?
Repeatedly boiled water commonly known as "thousands of boiling water, 1000 boiling water is on the stove a night or boiling water for a long time, and the electric water heater in repeated boiling water. This water has been cooked for too long, and no volatile substances such as calcium and magnesium are found in the water, and the content of heavy metals and nitrites are very high. Drinking this water for a long time; harmful drinking fountains in the water
Because the long time spent many times in boiling water boiled water also has the water called thousand boiling water, those in drinking machine or kettle is repeatedly heated water. Generally speaking, the nitrite content in this water will be higher. A great deal of nitrite can cause people to be poisoned directly. Because of the action of nitrite and human blood, methemoglobin is formed, which makes the blood lose the oxygen carrying function and make people suffer from hypoxia and poisoning. Although the amount of nitrite in the water is not so high, but when nitrite reaches a certain dose in the human body, it is carcinogenic, teratogenic, mutagenic substances, which can seriously endanger human health. So try not to boil the water over and over again. The hot water of the water dispenser is also best to "keep with the drink", do not keep it in a "heating - insulation" state. But 2 times is not much, repeated burn will not work. The oxygen content is low. And the water will burn for too long, so the water quality is hardened. It is not good for people to drink. It is easy to cause stones and other diseases.
Substances will interfere with gastrointestinal function, there is a temporary diarrhea, abdominal distension; toxic nitrite, but also cause hypoxia, severe coma, convulsions, or even death.Overnight boiled water tastes strange, so it's best not to drink it
