Why you can not add boiled water to boiling. When boiled water becomes harmful
People living in cities have long been accustomed to boiling water before drinking it. This action is aimed at eliminating various bacteria and microbes that feel great in a raw liquid, but are destroyed under the influence of high temperatures.
For many, it is customary to boil water once again in order to treat yourself to another portion of such a fragrant drink as tea or coffee. But it doesn't make sense. The fluid has already been decontaminated by the first thermal treatment and will not become clearer with any number of subsequent thermal treatments. From a medical point of view, used water should be replaced with new water. Such measures are required for several reasons.
First of all, repeated boiling of water already prepared for drinking reduces its taste, after which the liquid begins to give off an unpleasant metallic aftertaste.
Even in crystal water there are no impurities - especially if we talk about the chlorinated liquid of cities. The composition of water is designed in such a way that additional exposure to fire will cause only oxygen molecules to evaporate. Thus, the water will “get heavier”, as the amount of liquid contained in it will decrease, while the amount of harmful precipitation will remain unchanged.
It is noteworthy that boiling sea water is completely useless - after doing this several times, you will see that the liquid has evaporated, leaving unsuitable salt in its place. Salt impurities are also found in fresh water, but not in such quantities. When other harmful substances are released - carcinogens, the amount of which directly depends on how much and often the same water is subjected to heat treatment. All these substances do not have an immediate effect on the body, but, accumulating in it for years, gradually destroy it.
How not to break the life-giving power of water
How to protect your health from the negative effects of water? It is necessary to periodically replace it in the kettle - whenever you plan to boil it. You can leave the old liquid, but then you should limit it to simple heating, not bringing it to a boil.
We will have to try to ensure that repeated boiling of water has a bad effect on a person. In order to achieve the settling of harmful precipitation in dangerous doses, one must either boil it countless times, or drink an improperly prepared liquid for a long time. But it is worth approaching this issue consciously, as water will turn into an indispensable friend of your body.
Water, as one of the natural elements, has a powerful meaning in the life of people, living creatures, and the planet. It is a vital factor in the life of every person, creature, plant - absolutely all earthly origin.
No wonder the human body is 80% liquid. From childhood, we are told that we need to regularly consume a certain amount of water in our daily diet.
Scientists have even deduced a specific formula for combining a person's weight with the amount of required daily intake of water intake: the more weight, the more a person needs to drink.
But what kind of water should you drink? Most often and most affordable is to find ordinary tap water. In childhood, many of us sin by quenching our thirst right from the tap, but this is a huge mistake due to stupidity and unconsciousness.
Indeed, in order for the water to undergo at least some purification from the sedimentary layers that have piled up over the years on the inside of the water pipes, local authorities use chlorine. Indeed, not every resident of the metropolis has the opportunity to go and collect crystal clear water from the well.
And yet, drinking water in its raw form is highly discouraged, because in order to remove actively harmful components in its content, the water must go through the boiling process.
What does boiling do to water?
On this topic, there was a funny dialogue between the girl and her mother. The daughter asks: “Why are you boiling water, mom?” - “So that all bacteria die”, - “So, I will drink tea with dead microbes?”. And in fact, at the time of boiling, the following occurs.
First of all, when water reaches 100°C, the molecular constituents of water and oxygen undergo an evaporation process.
Secondly, the concentration of impurities that cannot be removed at the time of boiling doubles, since with evaporation part of the water leaves, while particles of salt and dirt remain. That is why sea water is considered unfit for drinking.
Thirdly, all unsafe harmful microbes, bacteria and microparticles are destroyed. But you are mistaken if you think that the more times you boil water, the more pathogenic bacteria you will kill. All of them die at the moment of primary boiling.
Fourth, hydrogen isotopes contained in water, with maximum heating, settle to the bottom, which entails an increase in the density of the liquid and its weight.
Why can't you boil water again?
We often get lazy when we sit, for example, in the office and suddenly want to drink a cup of coffee again, we press the switch on the kettle with already boiled water to boil it again. What is the risk?
1. Bad taste. You will no longer get the original taste of a drink prepared with such water. Why? Because raw water, when boiled, differs from that which has passed a hundred-degree heating, and re-boiled water loses its taste even more so.
2. "Deadness" of water. Every time the same water goes through the boiling process, its composition is disturbed and oxygen evaporates from the liquid. Water turns into "dead".
3. Increased concentration of impurities. As mentioned earlier, a boiling liquid tends to evaporate, and impurities remain, as a result of which, against the background of a decreasing amount of water, the amount of sediment increases.
4. Chlorine dioxins are formed. Initially, the chlorine in the pipeline water does not disappear anywhere, on the contrary, in the process of repeated heat treatment, its concentration only increases, and this leads to painful sensations in a person when such water is absorbed.
How to boil water properly
Use only fresh water before heat treatment;
do not add or mix fresh water with the remains of pre-boiled water;
let the water stand before boiling.
Boil water properly and drink to your health.
Everyone knows that any person is 80% water. Its molecules are involved in almost all processes occurring in the body. To ensure normal life, each adult individual needs to drink about 2 liters of fluid per day. In post-Soviet countries, it is generally accepted that boiled water is the cleanest and safest for the human body. But is it really so? In order to answer this question, you need to understand the pros and cons of boiling.
About living and dead water
Raw water contains a large amount of trace elements necessary for humans (copper, magnesium, calcium, etc.), which are present in it in the form of salts. Its use in its original, unboiled form has a beneficial effect on all organs and systems of the body, has a rejuvenating effect on it. However, during heat treatment, most of the salts precipitate, deposited on the bottom and walls of the kettle in the form of a poorly washed off whitish coating.
In addition, during the boiling process, oxygen evaporates from the water, and all the useful substances present in it are destroyed under the action of high temperatures. People who prefer to drink such a liquid do not get any benefit from it for their body. It is not for nothing that raw water has long been called living, and heat-treated water is called dead.
In addition to useful trace elements, nitrates, mercury and other substances that cannot be called friendly to the human body may be present in raw water. Boiling liquid to get rid of them is useless. On the contrary, the longer the kettle stays on the stove, the higher the concentration of harmful elements that negatively affect health will become in it.
The harm of chlorine
Boiled tap water, which is used by city dwellers for cooking and tea, deserves special attention. Such a liquid will not only not bring any benefit to a person, but can also become dangerous to his health. In our country, it is customary to chlorinate the water entering the apartment through pipes. Thanks to this, it is possible to disinfect it, killing pathogenic microbes in it. But people who are used to drawing water for making tea and food from the tap should be aware that the chlorine present in it, under the influence of high temperature, becomes a toxic compound that can provoke the formation of kidney stones in a person or even cause the development of cancer.
The harm of boiled water, regardless of whether chlorine is present in it or not, lies in the fact that after heat treatment it cannot be stored for a long time. After a maximum of a day, pathogenic microorganisms begin to multiply intensively in it, and its use can lead to a deterioration in human health.
A few words about the teapot
Boiled water becomes really dangerous if you use a poor quality electric kettle to make it. Cheap household appliances today are often made from toxic materials. If you boil water in such a kettle, harmful compounds from plastic will pass into it, and then, together with tea or coffee, will enter the body, causing serious illnesses in a person. In order to avoid such troubles, you need to buy kitchen appliances only from reliable manufacturers.
Why is heat treatment necessary?
But why is it said everywhere: "Drink boiled water"? What good is it, if so many facts testify to the dangers of heat treatment? The fact is that in raw water, especially if it is drawn from the tap, there are many microbes that die at high temperatures. The liquid poured from the kettle that has begun to boil is completely disinfected. You can drink such water without fear of catching insidious diseases such as intestinal infection, hepatitis, etc. It is undesirable to use it raw.
The benefit of boiled water is not only that all pathogens are destroyed in it. Heat treatment of the liquid makes it possible to reduce its rigidity associated with a high concentration of potassium and magnesium salts in it. When boiled, some of them settle on the walls of the dishes in the form of plaque, which means that they do not enter the human body and do not cause the formation of sand and kidney stones.
Basic rules for boiling
If you observe two main conditions, you can drink boiled water without fear that it will harm your health in any way.
Firstly, you do not need to keep it on fire for a long time. The kettle must be removed from the stove as soon as the first bubbles begin to appear in the water. This will be enough to kill all the harmful microbes in it. At the same time, the absence of long-term heat treatment will help preserve the maximum of useful trace elements in tea or coffee.
Secondly, in no case should water be boiled again, since as it evaporates, the amount of toxic substances that adversely affect health will increase in it. The kettle should be filled just enough to last one time. The remaining water must be poured out of it without regret, and next time boil new water.
So boiled water or raw?
Today, most doctors believe that water is most beneficial to drink raw. However, they do not mean the liquid flavored with chlorine flowing from the taps of city apartments, but bottled or spring. If a person uses water that comes to his house through pipes, then it must be boiled, because heat treatment kills all the microbes in it.
How often do we forget that the kettle has boiled for a long time and has already cooled down, and we all can’t tear ourselves away from our favorite show or series? We turn on the stove again and boil the kettle again.
What happens when we boil water a second time? Even though this is very important to know, it is not taught in school.
When water boils, its composition changes, which is completely normal: volatile components turn into steam and evaporate. Thus, boiled water is safe to drink.
But when the water boils again, everything changes for the worse: Boiled water is completely devoid of taste. If it is boiled several times, it becomes very, very tasteless.
Some may argue that raw water also has no taste. Not at all. Do a little experiment. At regular intervals, drink tap water, filtered water, boiled once and boiled many times. All of these liquids will taste different.
When you drink the last version (boiled many times), there will even be an unpleasant aftertaste in your mouth, some kind of metallic taste. Boiling "kills" water.
The more often the heat treatment occurs, the more useless the liquid is in the long run. Oxygen evaporates, in fact, the usual formula of H2O is violated from the point of view of chemistry.
For this reason, the name of such a drink arose - "dead water". As mentioned above, after boiling, all impurities and salts remain.
What happens with each reheat? Oxygen leaves, water - too. Consequently, the concentration of salts increases.
Of course, the body does not immediately feel it. The toxicity of such a drink is negligible. But in "heavy" water, all reactions occur more slowly. Deuterium (a substance that is released from hydrogen during boiling) tends to accumulate. And this is already harmful.
We boil, as a rule, chlorinated water. In the process of heating to 100 ° C, chlorine reacts with organic substances. As a result, carcinogens are formed.
Frequent boiling increases their concentration. And these substances are extremely undesirable for humans, as they provoke cancer. Boiled water is no longer useful. Re-processing makes it harmful.
Therefore, follow these simple rules:
- for boiling each time pour fresh water;
- do not boil the liquid again and do not add fresh water to its remains;
- before boiling the water, let it stand for several hours;
- after pouring boiling water into a thermos (for preparing a medicinal collection, for example), close it with a cork after a few minutes, not immediately.
Source
Despite the fact that outwardly we do not look watery at all, 80% of the human body is water. It is she who ensures the viability of cells, organs and our entire complex system as a whole. Our need for water is paramount, and we regularly replenish it with hot cups of tea and coffee. Can you boil water multiple times? Will it harm our health?
Is it possible to boil water several times, is it dangerous
Boiling as a process generally does not cause enthusiasm among adherents of a healthy diet. It is believed that nothing useful remains in such water. However, doctors insist on heat treatment of a clear liquid in order to get rid of possible pathogens. And how can you make tea with unboiled water?
One way or another, the culture of hot consumption has firmly entered our homes, and the kettle, no worse than a samovar, has taken its place of honor in the kitchen, performing the only function - boiling. Is it possible to boil water again, that is, already boiled once, but not used? Some serious whistleblowers say no.