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Tap water should not be drunk without boiling, because the current tap water has been sterilizedBut the tap water contains a small amount of chlorine, which is to disinfect the tap water, and at the same time, chlorine water is definitely harmful to the human body and cannot be eaten. Therefore, although the tap water looks relatively clean, it is better not to drink it directly. <>
In fact, we all know this truth, in ordinary life, there is basically no habit of drinking tap water directly, either drinking bottled mineral water, or boiling tap water before drinking. However, some people think that tap water has undergone a series of treatments, and it should not be much of a problem to drink it directly, but the real situation is that drinking tap water directly is indeed a problem. <>
Indeed, our current tap water has gone through several processes, first of all, water extraction, dosing, precipitation, filtration, etc., it can be said that most of the bacteria and impurities in the tap water have been eliminated, and then sent to our homes through tap water pipes. But it is precisely because of this that tap water is disinfected, and it is basically used when disinfectionChlorineto disinfect, which is why you can't drink tap water directly.
I believe that most people who have studied chemistry know that chlorine dissolves in water to form hypochlorous acid.
The function of hypochlorous acid is to disinfect and bleach, but at the same time, there is some residual chlorine in the water, and if you use this tap water with chlorine for a long time, it will definitely have an impact on the human body. And the solution is also very single, that is, after boiling, the chlorine in the tap water will be directly gone. <>
In addition, tap water also contains other impurities and bacteria, these impurities and bacteria are produced in the transportation of tap water, you must know that there is a long transportation distance from the waterworks to our home, in which it is inevitable that some bacteria and impurities will appear, so in order to protect your body, it is better not to drink tap water directly.
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It is not recommended to drink it directly, because although the tap water has been processed, it should still be boiled before use, which is more assured.
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It cannot be drunk directly, and tap water also has a lot of microorganisms. Drink it directly. It can lead to internal discomfort and increase the likelihood of developing parasitic diseases.
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It can't be drunk directly, and the current urban tap water is basically processed, and the waterworks will add a lot of chemicals to it, and some places in the north where the water alkali is heavy, let alone directly quote.
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If tap water is not boiling, it is best not to drink it directly, because it contains harmful substances, so it is important to heat it before drinking.
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First of all, there is residual chlorine in tap water, in order to inhibit bacteria in the transportation process, the residual chlorine content requirements are exceeded, which is higher than the drinking standard, and the chlorine will escape after boiling to meet the drinking standard.
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Boiling water for drinking is not safe and can sometimes be harmful.
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Tap water can be boiled directly to drink. Tap water is purified and disinfected by the tap water treatment plant to produce water that meets the corresponding standards, the chlorine used in tap water disinfection is a toxic gas, which can kill bacteria, but the chlorine will decompose with the increase in temperature, the higher the temperature of the water, the less chlorine will be, so the tap water should be boiled and drunk.
Boiling urban tap water can also play a sterilizing role, but also reduce the hardness of water, retain minerals and trace elements that are beneficial to the human body, boiled tap water is more suitable for long-term drinking than pure water, tap water is not recommended to drink raw.
Safety precautions for water use2. Do not move the water supply facilities without permission, especially do not move the water meter without permission.
3. If the water facilities are renovated and renovated, special pipes for drinking water should be selected, and the pressure test should be done after the transformation.
The above content refers to Encyclopedia - Tap Water.
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Boiled tap water can be drunk. Tap water is domestic water that has been filtered and disinfected and other simple treatments to meet the national drinking water quality standards. When boiling water, when the water is close to 100, the lid of the kettle should be opened to let some of the residual volatile organic compounds in the water volatilize, and then turn off the fire after 2 3 minutes after boiling.
Tap water refers to the water produced by the tap water treatment plant after purification and disinfection that meets the corresponding standards for people's life and production.
Domestic water is mainly absorbed from rivers, lakes, groundwater and surface water through the water intake pumping station of the water plant, which is treated by the waterworks in accordance with the relevant health standards for domestic drinking water, through precipitation, disinfection, filtration and other technological processes, and finally transported to various users through the water distribution pumping station.
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Tap water can be boiled directly to drink.
Boiled tap water can be drunk directly, and the drinking water is clean. The main difference between pure water and boiled water is that boiled water is tap water that is boiled at 100 degrees and then cooled down, because it only destroys a small amount of harmful substances, so that it still retains a lot of microorganisms and minerals. Pure water is filtered several times, not only is there no toxic substances, but also the minerals that are beneficial to the human body are eliminated.
Tap water disinfection is made of chlorine, chlorine is a toxic gas, can kill bacteria, but its solubility in the water will decrease with the increase of temperature, that is, the higher the temperature of the water, the less chlorine it contains, so the tap water should be boiled to drink, it is best not to drink raw, and the sediment in the water is because of the gum added when the water plant first treated the water, which can precipitate the impurities in the water.
It is best to drink the water freshly boiled. Repeatedly boiled water is "thousand boiling water", which is stagnant water, and after drinking, it will accelerate the aging of the human body. If the water is stored for too long, it will be polluted by the outside world, and the water is easy to age overnight to form stagnant water.
Open the lid and let the chlorine evaporate. During the disinfection process of tap water, some chlorine may remain. In order to avoid the impact on water quality, it is recommended to open the lid of the pot when the water is fast or just boiling, and let it continue to burn for another two or three minutes, so that some chlorine by-products and some harmful substances can evaporate.
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Not necessarily.
In general, boiling has three important roles:
1. Antivirus: High temperature can kill most bacteria and viruses.
2. Dechlorination: accelerate the volatilization of residual chlorine as a by-product of disinfection.
3. Reduce hardness: The boiling water can reduce the hardness and reduce the scale to a certain extent, but boiling can not solve two problems
1. Heavy metals, sediment, rust, volatile substances and bacterial residues in tap water, as well as organic pollutants and other pollutants that have not yet been characterized day by day, cannot be solved by boiling.
2. Chloroform will be produced after residual chlorine is boiled at high temperature, and chloroform has the risk of causing disease and will have certain safety hazards to human health.
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Boiled tap water is clean.
Tap water is a commodity, and it is filtered and disinfected by the water company. Drinking water must meet safety and hygiene standards before it can be used by the public.
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The tap water at home has a lot of impurities and bacteria, so you can't drink it directly.
After the tap water is boiled in an electric kettle, the water quality will improve to a certain extent, the residual chlorine will be reduced, the pH will become alkaline, and the hardness of the water will be reduced. However, there is still residual chlorine in the tap water after boiling, and the water quality is hard water, and the taste will deteriorate after the scale is precipitated.
Therefore, tap water can be drunk after boiling in an electric kettle, but it is not recommended to drink it for a long time. After all, water is relatively hard, and drinking it for a long time is easy to cause problems such as kidney stones.
Extended Information: Impurities in Tap Water:
1. Suspended solids;
2. Sediment, algae, and rust from peeling old pipelines from water sources may be mixed into drinking water. These impurities cause the water to become turbid, which is visible to the naked eye;
3. All kinds of bacteria, viruses and parasites;
4. The waterworks will inject chlorine gas into the water to sterilize, but there are always some that can escape;
5. In the process of tap water transportation through pipelines, there may also be bacteria breeding bacteria again;
6. All kinds of inorganic salts and metal ions. A certain amount of minerals are dissolved in natural water sources, and this is how scale comes from. The amount of calcium and magnesium ions determines the hardness of the water, as long as it is not too high, it is harmless.
Copper, lead, cadmium, arsenic and other heavy metals can seriously threaten health, of course, the less the better;
7. From pesticides, fertilizers, environmental hormones, etc., it is a product of the chemical era.
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Boiled tap water can only be said to be sterilized at high temperatures, but chlorine gas is added to the tap water (for disinfection), and because the water pipes are used for a long time, there are harmful substances such as rust.
This is also the sales rhetoric of many tap water purifiers now.
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There is no doubt that the boiled tap water is really clean and fully drinkable.
Unless the tap water is not up to standard, there is no need to worry about the quality of the boiled tap water, and you can drink it with confidence.
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The boiled tap water is really clean, the tap water is all treated, it meets the drinking standards, and it also meets the hygiene standards, it is safer and cleaner after boiling.
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If it is and qualified tap water is clean, tap water is hygienic, and it can be drunk with confidence after boiling at high temperature.
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Boiled tap water is also clean, at least much cleaner than the fresh water we collect from the wild; The pipes in each area are not the same, and the water quality is also different, such as the tap water pipes in our old community, which were installed more than 20 years ago. It can be said that if the water pipes were sawed now, they might not be able to eat after reading it, and they would not dare to drink tap water. These water pipes may have accumulated a thick layer of rust, and among these rusts is the tap water and even moss that we usually drink.
Therefore, in general, it is best to install the tap water filter after the tap water enters the household and replace the filter element regularly.
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Nowadays, water pollution is getting worse, and it is nothing new. Many people think that pollution is not a big deal, and that after the water is boiled, you can drink clean and hygienic water. In fact, tap water is not as clean as you think, and such tap water will not be too clean after boiling.
Is tap water necessarily clean when it is boiled? This scientific data tells you the truth!
1. The hazard of tap water.
Water companies use chlorine to effectively sterilize and remove odors, but residual chlorine will give tap water the smell of disinfectant water, and it is easy to produce carcinogens such as trihalomethanes when heated. At the same time, tap water passes through various pipes during the process of transporting it from the waterworks to the home. Most of the water pipes are made of metal, which will release a certain amount of harmful heavy metals into the tap water, and the water pipes will age and rust after long-term use, and the rust will flow to the user's home with the tap water, and drinking such water for a long time will cause harm to the human body.
It is generally believed that boiling water is the most effective way to kill viruses and sterilization, but boiling water cannot solve the problems of heavy metals, toxic inorganic substances and carcinogens in water. In addition, in the process of boiling water, the water will evaporate, which will increase the concentration of harmful substances such as heavy metals, so boiling water will not completely solve the problem.
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The tap water has been filtered several times and is clean, and it is cleaner after boiling, but this clean is drinkable. There are still impurities in it. Some of the water is hard, and after boiling, you will find that there will be white sediment at the bottom of the pot.
After boiling, the tap water can basically achieve the purpose of disinfection. As we have already talked about in modern water pollution, it is mainly chemical pollution and heavy metals in industrial wastewater, and these pollutants cannot be removed by boiling water. Therefore, boiled water is likewise not standard drinking water.
The cleanliness of boiled tap water and distilled water is still not the same.
Distilled water for hospital infusions is cleaner than boiled tap water.
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In general, tap water should be boiled before drinking. But boiling water only kills most of the bacteria in the tap water and preserves the ions.
After the water is boiled, the oxygen content in the water will drop sharply, and when the raw water is boiled, it will promote the chlorine and organic compounds in the water to mix, so that nitrate will become nitrite, so that the human blood red egg white will become nitrite red egg white, so that the red blood cells will lose their oxygen-carrying ability. Therefore, it is not safe to drink tap water after boiling.
If the water is boiled for too long, it will cause aging water, and the toxic substances in the aging water will increase with the increase of water storage time.
Therefore, it is best to drink the boiled water on the same day, and some attempts have shown that drinking boiled water that is naturally cooled and the abandonment time is not more than 6 hours is the most beneficial to the health of the human body. Compared to boiled tap water, purified water is much more peaceful and safe to drink.
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Here I am: the boiled tap water is really clean, the raw tap water has a lot of minerals that are harmful to the human body, there are a lot of impurities, and there are a lot of bacteria. Boiled tap water will disinfect and be very good for health, so you need to drink boiled water to ensure your health.
Over, thank you for your question! Hope, thank you!
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