Is it harmful to keep heating the water in the water dispenser?

Harmful, repeatedly heated purified water can have elevated levels of nitrate, which can be carcinogenic.

The water in the water dispenser is heated repeatedly, and the water quality is definitely not good, so it must be drunk and burned.

Qinyuan heatless bile water dispenser completely solves the problem of thousands of boiling water and secondary pollution of water dispensers.

Consumers choose water appliances are most concerned about health and energy saving two indicators, gallless fast heating water dispenser in these two aspects compared with the traditional water dispenser has an absolute advantage, five major technological innovation will fully subvert the traditional water dispenser. First of all, from the perspective of product power consumption, traditional water dispensers need to consume electricity in a day under normal circumstances, and products with poor thermal insulation performance will reach about degrees, while the power consumption of non-hot tank water dispensers is only degrees, which is about 50% less than traditional water dispensers. According to the calculation of 80 million water dispensers in the country, if all of them are replaced with heatless instant hot water dispensers, it will save 14 billion kilowatt hours of electricity for the country every year.

Second, from the perspective of the hot water production capacity of the product, the gutless fast heating water dispenser can produce hot water in an average of 20 seconds, the hot water output in three minutes reaches 750ml, and the hot water production capacity reaches 16L per hour, which is 30 times faster than the hot water dispenser and more than 3 times larger than the hot water dispenser! Third, greatly reduce the proportion of reheated water, the traditional water dispenser hot tank generally adopts the side water inlet structure, which leads to the existence of about 30% of the dead water at the bottom of the hot tank every time the hot water is made, and these dead water is repeatedly heated, causing serious secondary pollution. The Qinyuan quick-heating water dispenser adopts a rapid electric heating system, which basically eliminates the deposition of stagnant water in the pipeline and minimizes the possibility of repeated heating.

Fourth, the six safety protections of the quick-heating water dispenser ensure the safety and reliability of users in the process of use. Fifth, the maximum hot water temperature of the quick-heating water dispenser can reach 98, which is nearly 10 times higher than the temperature of the traditional water dispenser, which is more in line with the drinking habits of Chinese consumers.

Generally, the water in the water dispenser at home is mainly bottled water and tap water. Among them, bottled water is not fundamentally different from the purified water and mineral water we usually buy, and it can be drunk directly without heating. And your own tap water, which is generally boiled in a water dispenser and then drunk, is also safe.

For boiled water, it can still be drunk after repeated boiling, and it will not cause cancer. The laboratory determined that after boiling 20 times, the nitrite content in the water is still far below the national standard for drinking water, otherwise the water used to cook porridge and stew will be discarded.

But the premise of these is that the water dispenser is clean. First ask yourself a question, has your water dispenser been washed? How often should I wash it?

According to the survey, more than 40% of households have never cleaned their water dispensers. And 87% of households that have washed water dispensers simply scrub themselves.

The so-called "thousand boiling water" is water that has been boiled repeatedly.

In many rumors, thousands of boiling water is not good water, and it has been charged with "excessive nitrite", "carcinogenic", "causing lack of oxygen in the body" and other crimes.

It's really water boiling in the kettle, and the pot comes from the sky.

It is true that tap water contains nitrate, and in the process of repeated boiling, some of the nitrate will be converted to nitrite due to the lack of oxygen at high temperatures.

However, even after repeated boiling, the nitrite content in tap water is very low.

Even if boiling water 20 times repeatedly, nitrite is not enough to reach 3% of the daily level, so low that there is no need to worry.

There is harm but not much physical harm. When the water in the water dispenser is repeatedly boiled and circulated (commonly known as "thousand boiling water"), the water is repeatedly boiled in the water dispenser, which will turn the "nitrate" in the water into "nitrite", and the "nitrite" will make the hemoglobin in the human body become "nitrite hemoglobin", so that the red blood cells lose the function of carrying oxygen. However, it takes 100 degrees Celsius to convert the "nitrate" in the water into "nitrite", and the water in the water dispenser will automatically stop heating when it is heated to 85 degrees Celsius, so although the repeated heating of the water dispenser is not very good, it is not a big problem.

<>1. The water dispenser is heated repeatedly, mainly because its switch is always turned on, so that when the water temperature in it drops to a certain extent, it will automatically heat and boil, and so on, as long as the power is uninterrupted, it will always be heated.

2. This is very bad, after the water in the water dispenser is heated repeatedly, the nitrite content will become high, and the active ingredients in the water will gradually be filtered out, and long-term drinking will cause certain harm to the stomach and intestines, so it is recommended to open it when you want to drink water, and turn it off in time when you don't drink it.

3. Generally speaking, it is not recommended to always turn on the water dispenser, not to mention that the water quality will change, and it is also a great waste of electricity, and there are also great potential safety hazards, which will cause fire if you don't pay attention to it.

The thermal switch is broken, and there is a cylindrical heating tank inside the water dispenser, and there are two round button-like thermal switches, one 95 ° and one 85 °, just replace them together.

The water dispenser can not be heated often, and repeated boiling of water will lead to an increase in nitrite content, which will lead to poisoning after long-term drinking, and frequent heating will also cause a lot of waste in terms of lighting, so it is recommended to only open it when drinking, and pay attention to the cleaning of the water dispenser.

It is very bad for the water dispenser to be heated frequently, the water is repeatedly boiled and evaporated again, and the nitrite contained in it will rise, if you drink this water for a long time, it will lead to the accumulation of nitrite in the body, and it will be poisoned in serious cases, so this is also the reason why the water can not be drunk overnight.

Secondly, regular heating will also cause a lot of waste in terms of electricity, if you keep boiling water, ordinary water dispensers will use one kilowatt-hour of electricity for about 2 hours, so basically turn it on when you want to drink water, and turn it off when you don't drink water.

And when we want to change the bottled water for the water dispenser, we should also pay attention to cleaning up some of the old water in the inner tank, which contains a lot of bacteria, if mixed into the clean bottled water, it will continue to multiply, thus causing many diseases, so we should also pay attention to cleaning up in time when turning off the water dispenser.

There is no harm. Reason:

After relevant experiments, the results showed that after heating the bottled water to 181 times, the nitrite ion content in it was micrograms per liter, which was five times that of the beginning. There is no need to panic when you see this "5-fold increase". Although this figure exceeds the sanitary standards for bottled water in our country, it is still safe.

You know, the ham sausage that many people like to eat has a much higher nitrite content than this. The allowable amount of nitrite in qualified ham sausage is 30,000 mcg (30 mg) per kg. Ham sausage is still safe, and there is no need to worry about this nitrite in the water.

Generally speaking, the water dispenser and ordinary electric kettle at home do not hold much water, and it is estimated that they have been drunk before they have been heated a few times.

1. Boiling the water boiled by oneself repeatedly, commonly known as "thousand boiling water", the water is repeatedly boiled, which will turn the nitrate in the water into nitrite, and nitrite will make the hemoglobin in the human body become nitrite hemoglobin, which will make the red blood cells lose the function of carrying oxygen.

2. But it takes 100 degrees Celsius for nitrate in water to convert nitrite, and the water in the water dispenser will generally stop heating when it is heated to 85 degrees Celsius, and the water in the water dispenser is circulating (that is, you pour out the hot water, and the water dispenser re-injects cold water to make the total temperature drop).

3. People usually change the bottled water repeatedly, but they ignore that there is still some old water in the inner tank of the water dispenser, and the pathogenic bacteria are hidden in the "old water", and over time, it has become a breeding ground for bacteria. When these bacteria are consumed, they may cause a variety of diseases of the digestive, urinary, and nervous systems.

4. In this case, it is best to remove the old water in the machine through the drain port first.

5. Therefore, although the repeated heating of the water dispenser is not very good, it is necessary to pay more attention to the hygienic water dispenser of the water dispenser also needs to be cleaned.

There are several possible reasons why drinking water and finger machines are constantly heating:

1.Faulty temperature sensor: Water dispensers usually have temperature sensors that detect the temperature of the water, and if the sensor fails, it may cause the water dispenser to heat up constantly.

2.Failure of the temperature control device: The temperature control device of the water dispenser usually automatically turns on or off the heating function according to the set temperature, if the temperature control device fails, it may cause the water dispenser to keep adding heat or not heating.

3.Heating pipe failure: The heating pipe of the water dispenser may be blocked or short-circuited, resulting in non-stop heating or non-heating.

4.The water level of the water tank is too low: If the water level of the water dispenser is too low, it may cause the heating pipe to keep heating because the water in the water tank cannot cover the heating pipe hall.

5.Control panel failure: The control panel of the water dispenser is the core component that controls the normal use of the entire water dispenser, if the control board fails, it may cause the water dispenser to be continuously heated, not heated or unable to operate normally.

In order to avoid the problem of non-stop heating of the water dispenser, it is also necessary to clean and maintain the water dispenser regularly, check whether the heating pipe, control plate and other key components of the water dispenser are normal, and deal with the fault in time to avoid subsequent problems.

Nitrite in drinking water is usually converted from the nitrate present in the water. The nitrate level in qualified drinking water is very low, with a limit of 10 milliliters of nitrate (in terms of nitrogen) in drinking water and 20 milligrams of litres when underground water sources are restricted.

After drinking water is repeatedly boiled, part of the nitrate is converted to nitrite due to high temperature and lack of oxygen. In addition, due to the evaporation of water, the nitrite concentration also increases. If too much nitrite is ingested at one time, it is easy to cause acute poisoning.

Poisoning can occur when ingestion reaches grams, and death can occur when ingestion exceeds 3 grams.

In fact, in daily life, it is rare to repeatedly heat drinking water dozens or hundreds of times, even if you use a water dispenser to heat it more than 50 times, it is not a matter of drinking a few glasses of water to be poisoned. Because people have to eat about nitrite at one time to get poisoned, which is equivalent to more than 80 liters of water, it is impossible to drink so much water at one time. Therefore, it is not harmful for the body to boil the water in the water dispenser repeatedly.

There is no harm. 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 the increase of nitrite concentration due to water evaporation and concentration, but the total amount does not increase; Another possibility is that some nitrates are heatedly broken down into nitrites. China's sanitary standards for bottled water stipulate that the nitrite content in water shall not exceed 2 micrograms per liter.