Why can not I boil water for the second time?

Why can not I boil water for the second time?"Unfortunately, many people do not know the answer to this question, and every day they make the mistake of not draining the old water from the kettle. But this ban has been known for a long time, but most simply close their eyes to save water and pay for utilities. In this article you will find exhaustive information about why it is harmful to boil water several times.

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Why boil water?

As it is known, no living creature can live without water, be it a plant, an animal, a microorganism or a human being.80% of our body consists of a liquid( in infants - by 90%).Fresh water is just necessary for us for normal metabolism and elimination of toxins and toxins from the body.

Unfortunately, the problem of pure tasty water in the modern world is more than relevant:

• in villages where previously it was possible to find clean springs, now they are not quite clean due to soil contamination;
• in the city of water to reach the apartment, you need to go miles of pipes of dubious purity.

Important! Naturally, in the latter case, the liquid is disinfected with special substances, for example with chlorine, but this spoils the taste and smell of water, and it does not help in many ways. Concerning purification systems - their effectiveness is very controversial, because in some cities they have not changed for several decades.

Conclusion on the quality of drinking water deplorable. To at least somehow remedy the situation, people began to boil the liquid. The goal of this process is to kill all bacteria and microbes that are in damp water, that is, literally sterilize it.

Indeed, most microorganisms die under the influence of high temperatures. Then why the water can not be boiled many times, because doctors recommend to use tea only for the preparation of tea or coffee only that liquid that was boiled once, necessarily pouring out the old remnants. To understand this recommendation, consider the physical and chemical properties of ordinary water.

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What happens to water during boiling?

Let's consider in detail what changes occur when the temperature reaches 100 degrees Celsius with the composition H2O:

• In the process of boiling, oxygen and water molecules evaporate.
• Since any water contains a large amount of impurities, you should know that after boiling they do not go anywhere. Moreover, their concentration increases, since the liquid itself becomes smaller due to the evaporation of water molecules. Particles of dirt and salt settle on the bottom of the kettle, forming a white scum.

Important! This is why sea water even after boiling is unsuitable for drinking.

• Destroy all pathogenic bacteria, viruses and microbes.

Important! It is a mistake to think that every subsequent boiling kills more and more harmful microbes, viruses and bacteria. All harmful microorganisms die at the first heat treatment at 100 degrees Celsius.

• Water molecules have in their compositions heavy chemical elements - isotopes of hydrogen. They are resistant to a temperature rise of up to 100 degrees and settle to the bottom during boiling. Thus, the liquid becomes more "heavy".

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Can I boil water several times?

A large number of people do not drain the old, previously boiled, liquid, and again it is boiled to make tea. Is it harmful to boil water a second time?- We will understand this question.

Boiled water is completely tasteless

If a fresh clear liquid does not have a special taste, the boiled water loses even the remnants of it. And if you boil water several times, it turns into a very tasteless. To understand the difference, you can conduct an experiment:

1. After some intervals, drink these liquids: tap water, filtered water, boiled once and boiled several times with liquid.
2. All tested liquids will have absolutely different taste. And the latter can leave an unpleasant aftertaste.

Boiling makes the water "dead"

The more and more water is processed, the more useless the result is the liquid. When boiling, the chemical formula H2O is violated, since oxygen leaves the liquid. Water becomes "dead".

The amount of impurities increases

With each subsequent boiling of the same liquid, the concentration of salts increases. Naturally, the human body does not immediately feel such changes, and the toxicity of such a liquid is a negligible percentage. But all reactions in "heavy" water are slower, and deuterium - an element that is released during boiling from hydrogen, has the property of accumulating, which brings the undoubted harm to the body.

Important!"Heavy" water looks the same as the ordinary, and the chemical formula has the same - H2O, but instead of atoms of light hydrogen( protium) it contains atoms of heavy hydrogen( deuterium).

Dogs, rats, mice and other mammalian animals die approximately in a week of regular consumption of such water due to the replacement in tissues of more than 25% of light hydrogen by heavy. A person without harm to health can drink theoretically two glasses of "heavy water".In this case, after a few days, deuterium will be completely eliminated from the body.

Carcinogens

Generally, the water we boil for our food needs is treated with chlorine. In the process of heating to 100 degrees Celsius chlorine reacts chemically with organic substances, resulting in the formation of carcinogens. This is one more of the important reasons why you can not boil water repeatedly. With each subsequent heat treatment, the concentration of carcinogens increases, and these substances are known to provoke the development of cancer in the human body.

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How to boil water correctly?

Boiled liquid is already not very useful, but its repeated treatment makes it harmful. Therefore, before following the procedure for heating water for tea, observe such simple rules:

1. Use fresh water every time to boil.
2. Can I boil water for the second time?- It is possible, but definitely not necessary! Do not re-boil, as well as add fresh liquid to the processed residues.
3. It is advisable to allow water to stand for several hours before boiling.
4. Using a thermos, do not cover it with a stopper immediately after pouring boiling water into it. Do this in a few minutes.
5. Keep an eye on the container in which you boil water. Immediately clean the kettle of scale - for this you can use citric acid or vinegar.
6. No need to think long over how much water you need to boil. Wait until the water has a white hue from saturation with air bubbles and turn it off. Do not wait until it starts to bubble and splatter. Remember that the longer the water boils, the less it becomes and the higher the concentration of carcinogens. That's why you can not boil water for long.

Important! Boiling for more than 20 minutes completely changes the structure of the water.

As you can see, the arguments as to why it is impossible to boil the water several times are quite serious. Water and food should only benefit your body. Boil several times the same water or not - it's up to you. But if this way you can even save a small percentage of your body from the accumulation of harmful substances, then why not try it? Moreover, special efforts are not required for this.