Several times boiled water. The harm of re-boiling water is a myth

Water is one of the most unique substances in nature. It is necessary for a person every day. An important factor in its use is purity and the absence of harmful impurities. Poor water quality can be extremely dangerous for the body. Therefore, before use, it is usually filtered, frozen or boiled.

What happens to water when it boils?

Each of us boils water. Some use it as a drink, additionally cooling. Most make tea. Very often you can hear that water cannot be boiled twice. There is an opinion that such a liquid becomes dangerous to humans. This is explained by the fact that even with a long first heating, useful microelements disintegrate. During the second boiling, there is allegedly nothing useful left in the water at all.

Boiling is necessary in most cases. Tap water can harbor harmful bacteria. They die already after 2-3 minutes of heat treatment. But it is worth noting that some dangerous microorganisms are not afraid high temperatures. In this case, boiling is powerless to cope with the problem. Also, salt cannot be removed from water in this way. heavy metals.

It is believed that water should not be boiled twice due to the fact that it can become "heavy". From a chemistry point of view, this is a myth. Heavy water is almost impossible to create at home. This is difficult process. This result is affected only by long boiling over many years.

In addition, heavy water is not fatal to humans. It is relatively quickly excreted from the body.

The quality of boiled water may depend on the type of kettle. Many people do not boil water twice in plastic electric kettles. They believe that there is a reaction with the plastic. In fact, if the polymer is allowed to be used as a material in which water is heated, then it is safe.

Highly chlorinated water can be harmful to health. It already reacts with plastic during the first heating. Various dangerous substances. They can also be preserved by re-boiling. Therefore, the problem is rather not in the secondary boiling, but in the composition of the water. Before heating in an electric kettle made of plastic, it must be defended in a glass container.

The possibility of harm from secondary boiling can also be if the kettle is made of low-quality material, in which plasticizers are added. These substances make the plastic less brittle. They begin to stand out during heating. It turns out that we drink water or tea with a dose of plasticizers. Therefore, you should not buy cheap Chinese appliances. Cost is a direct indicator of the quality of plastic. The service life of kettles made of safe material is 3 years. After that, it is better to replace it with a new one.

Read also: 7 ways to purify your tap water at home. Preparation of living water

Boiling water: myths and facts

1. Some attribute the harm of boiling to the fact that the structure of the liquid is disturbed. In order to deal with this, let us recall such a concept as the memory of water. It means that the liquid remembers the molecular composition of the substance originally dissolved in it. When heated, this memory is allegedly destroyed, and the water becomes dead. Official science does not recognize this fact. scientific name dead water- distilled. In fact, it is a liquid devoid of all impurities. It is obtained with the help of a complex technological process. Like heavy water, getting distilled water at home is almost impossible.
2. Another reason why re-boiling is feared is the loss of oxygen in the liquid during re-heating. It becomes less in the composition of the liquid already during the first heating.
3. Thus, when boiling, the quality of the water is important. Chlorinated water is dangerous, both at the first and at the second heating. With repeated heat treatment, the liquid does not become stiffer. It's softer than regular tap water.
4. Boiled water will not cause harm to health under the following conditions:
5. Settling or filtration of liquid. Chlorine evaporates from the water and when heated, the formation of carcinogens will not occur
6. Proper utensils for boiling. Do not choose kettles made of cheap plastic. When water is heated in it, a plasticizer is released
7. Cleaning the kettle. This allows you to rid the water of impurities that accumulate on the walls of the dishes.

Mom, why are you boiling water?
- To kill microbes.
- Do you want me to drink tea with dead microbes?)))

Let's say right away that repeated boiling of water in itself does not bring much harm, but there will be no benefit either.
So why not boil water again or add raw boiled water and boil together? Consider the main opinions.

1. Heavy water.
In the process of prolonged boiling, large masses of water evaporate from the water and in this way the proportion of "heavy" water D2O increases. Heavy water settles at the bottom of the kettle. Therefore, if you do not pour out the remains of boiled water, but add fresh water to it, then when boiling again, the percentage of heavy water in this vessel will increase even more. With repeated additions of new quantities of fresh water to the remains of old boiled water, a rather large concentration of heavy water can be obtained. And this is dangerous for human health. If you boil the same water for a long time, then it becomes "heavy" - like treated water from nuclear reactors.

Heavy water is water with deuterium (deuterium oxide). Deuterium- heavy hydrogen, denoted by the symbols D and 2H. Deuterium is found in small doses in ordinary water (1:5500). The increase in the concentration of heavy water, even with prolonged boiling, is so negligible that it lies beyond the sensitivity of the organism and can only be detected by precise equipment. An increase in concentration does not mean an increase in the amount of heavy water itself.

Heavy water(also deuterium oxide) - this term is usually used to refer to heavy hydrogen water. Heavy hydrogen water has the same chemical formula, like ordinary water, but instead of atoms of the usual light hydrogen isotope (protium) it contains two atoms of the heavy hydrogen isotope - deuterium. The formula for heavy hydrogen water is usually written as or 2H2O. Outwardly, heavy water looks like ordinary water - a colorless liquid without taste and smell.
However, heavy water is not as poisonous as many think. A person can drink a glass of pure 100% heavy water without any visible harm to health, all deuterium will be removed from the body in a few days.

Experiments on mammals have shown that tangible consequences for the body occur at very high concentrations of deuterium in tissues (25%-50%). A person weighing 70 kg should drink 3 liters of 100% heavy water daily for a week so that its concentration in tissues is 25%.

The final answer will be given to us by the school problem book in chemistry for the 11th grade. In one of the tasks, a quote is given from Pokhlebkin's book "Tea", where the author writes about "heavy water", the inadmissibility of making tea from it and the need to pour it into the kettle every time new water. Further, the authors of the problem book ask: how many times do you need to add water and boil it in a 1.5-liter kettle so that the concentration of heavy water increases 10 times? There are all sorts of moths, shares, X's and, finally, the answer. "In order to increase the content of heavy water by 10 times, it is necessary to evaporate half of the water 157 times in a row, that is, to reduce its initial amount by some unimaginable number with powers of times, which seems meaningless." So drink calmly tea from boiled water several times!

2. Decrease in oxygen in water.

The statement that it is impossible to boil water twice, because it “becomes less oxygen” is not true. There is as little oxygen in freshly boiled water as in twice boiled water - and several times less than in water, say, 90 degrees A supersaturated solution of oxygen in water in normal conditions does not happen, so neither the number of boils nor the rate of water heating are important.

3. Increase in salt concentration.

It is believed that repeated boiling in water increases the concentration of either just salts, or heavy metal salts, and all this is very harmful, of course. With each boiling, the water evaporates and the concentration of dissolved salts in the residue increases. At the same time, everything depends on the purity of the source water, if the water is clean, you boil it for as long as you like, nothing will happen.
This is not true. All salts of reversible hardness decompose during the first boiling. When the water is heated, there is a rapid decomposition of hardness salts with the release of carbon dioxide - this explains the "whitening" of water and the release of a large number small bubbles before boiling. Accordingly, boiled water, as a rule (with the initial presence of significant reversible hardness, is softer than unboiled water, but it does not matter how many times the water was boiled.

3. Water becomes "dead".

Filtered water is "alive", i.e. saves because "information structure" of flowing water. Boiled, respectively, is inanimate. (Not to be confused with "dead" acid and "live" alkaline water after hydrolysis!) This is well felt by animals that are more likely to drink running water from a tap (even with chlorine!) or a filter (as well as from puddles and open reservoirs) than boiled water from a kettle. This is not officially recognized by science. So to believe or not to believe is your choice.

* * *
So, of course, water can be boiled repeatedly, but from the point of view of benefits, it is most useful to drink filtered water, but not boiled. For tea and coffee, it is enough to heat the water to 80 degrees. And if you boil water, then not immediately from the tap! The water must settle so that the chlorine evaporates, as already mentioned here

Everyone knows that drinking tap water is extremely harmful. But not everyone has the opportunity to buy bottled water or use special filters. Since time immemorial, there has been one reliable way to disinfect water - boiling. In the days of our mothers and grandmothers, many in the kitchen had a container with boiled water and children were ordered to drink only from it! Using the same water, some brewed tea or coffee, boiling it again in this way.

And today, many people often boil water several times, mainly for tea or coffee, being too lazy to pour out the liquid left in the kettle from the last time. This is especially true for offices, where one kettle is poured in the morning and water is boiled in it again every time someone wants to drink tea.

But will such a habit harm the body? Some supporters healthy lifestyle life argue that it is impossible to boil water again in any case. How right are they?

To begin with, we will tell you what impurities are contained in tap water. Firstly, this is a considerable amount of chlorine, which is used to clean it, but can irritate the skin and mucous membranes, and in large doses contribute to the occurrence oncological diseases. Secondly, these are calcium and magnesium salts, which, when boiled, settle on the inner walls of the kettle - the well-known scale. Thirdly, heavy metals, such as lead, strontium and zinc, at high temperatures form carcinogenic compounds that provoke the occurrence of cancer cells. And fourthly - viruses, bacteria and similar microflora.

Water "living" and "dead"

What happens to all these substances during boiling water? Definitely, bacteria and viruses die at the first boil, so this is simply necessary to disinfect water. Especially if the water is taken from a dubious source - a river or a well.

Heavy metal salts, unfortunately, do not disappear from water, and when boiled, their concentration can only increase due to the fact that a certain volume of water evaporates. How more number boiling, the higher the concentration of harmful salts. But, according to scientists, their number is still not enough to cause significant harm to the body at a time.

As for chlorine, during boiling it forms a lot of organochlorine compounds. And the longer the boiling process lasts, the more such compounds appear. These include carcinogens and dioxins that can cause negative impact on cells human body. Scientists during the laboratory research found that such compounds appear even if the water was purified before boiling with inert gases. Certainly, harmful action such water will not be noticeable immediately, aggressive substances can accumulate in the body quite long time, and then lead to the development of serious diseases. To harm the body, you need to drink such water every day for several years.

According to the British Julie Harrison, who has great experience studies of the influence of lifestyle and nutrition on the occurrence cancerous tumors, each time the water is boiled, the content of nitrates, arsenic and sodium fluoride becomes higher. Nitrates are converted to carcinogenic nitrosamines, which in some cases cause leukemia, non-Hodgkin's lymphoma and other types of cancer. Arsenic can also cause cancer, heart disease, infertility, neurological problems and, of course, poisoning. Sodium fluoride adversely affects cardiovascular system and at high doses can lead to sharp drops blood pressure and dental fluorosis. Substances that are harmless in small quantities, for example, calcium salts, become dangerous when water is repeatedly boiled: they affect the kidneys, contribute to the formation of stones in them, and also provoke arthrosis and arthritis. Especially not recommended repeatedly boiled water for children, because high content in it, sodium fluoride can seriously harm their mental and neurological development.

Another fact in favor of the inadmissibility of repeated boiling is the formation of deuterium in water - heavy hydrogen, the density of which also increases. Ordinary water turns into "dead" water, the constant use of which threatens lethal outcome.

However, scientists are of the opinion that the concentration of deuterium in water, even after several heat treatments, is negligible. According to the research of academician I.V. Petryanov-Sokolov, to obtain one liter of water with a lethal concentration of deuterium, you will have to boil more than two tons of liquid from the tap.

By the way, water boiled several times changes its taste qualities not in better side, so that tea or coffee made from it will not be what it should be!

To boil or not to boil?

Boiled water is still more beneficial for the body than water straight from the tap. So a single boil is quite reasonable. But it is better to refuse from the repeated one, since organochlorine compounds are clearly released with it, even in small quantities, and this is fraught for the body later. It is much easier to acquire a new habit: before each tea party, fill the kettle with fresh water, giving it a little “breathe” beforehand - to weather chlorine and other harmful substances. And be sure to clean the kettle from scale!

Water also plays an important role for humans. The daily need of the human body for water is 2-3 liters. Not all the need for water is met by people drinking pure water. Someone likes to drink juices or soda, someone likes to drink cocoa.

To prepare hot drinks - coffee, cocoa, etc., water must be boiled. As a rule, one boil is more than is needed at a certain moment to satisfy the need. Boiled water remains, which is re-boiled the next time. There is such a “horror story” among the people that if boiled water is boiled again, then the water becomes “heavy” - harmful to the body. But it's not. The harm of re-boiled water for humans is nothing more than a myth.

The Caravan publication cites the opinion of medical observer Tatyana Ressina, who notes that there are many misconceptions around boiled water that are fundamentally wrong.

Myth one

If you boil water several times (more than once), then the water becomes "heavy" - harmful to the body.

Myth two

As soon as the water boils, you need to stop the boiling process, since prolonged boiling of water also makes it “heavy” and harmful to the body.

Myth three

If raw water is added to boiled water and boiled, it will still be harmful to health.

According to the distributors of these myths, if the boiled water was not used in full, then during the next boiling process, the water must be completely renewed - boiled pour out and pour raw water into the kettle.

All these are myths, there is no evidence that re-boiled water or boiling water for too long, as well as adding raw water to boiled water before re-boiling, are harmful to the human body, notes Tatyana Ressina. According to her, perhaps the first disseminators of these myths accidentally stumbled upon information about heavy water and began to spread fears, and these fears, picked up by popular rumor, intensified many times over.

It is almost impossible to make heavy water from "ordinary" water by boiling at home.

During the boiling process, “ordinary” water can become heavy water, but it’s not so simple and it’s almost impossible to achieve this at home. If we talk about repeatedly boiling water in a kettle, then it takes more than a dozen years to boil it again for the water to become heavy. For obvious reasons, it will be impossible to do this, if only because the water by that time will have time to evaporate from so many boils. Therefore, there is nothing to fear - you can safely boil already boiled water and drink it calmly.

What is the danger

The danger in the process of boiling or re-boiling may be different. If you decide to re-boil water, then pay attention to how much time has passed since the last boiling process. If enough has passed long time, then it is better to drain the water and pour fresh water into the kettle. The fact is that various microorganisms develop faster in stagnant water, and more dust and other debris gets into it.

Water

According to experts of the Medicine and Health News Department of the Market Leader, water plays a very important role in human life. Our body consists of up to 3/4 water and the loss of more than ten percent of this fluid is fatal. A person can live much longer without food than without water.

Water - not only supports human life, it forms almost all other processes on the planet. And this is not surprising, the surface of the Earth is more than seventy percent covered with water. Water plays a key role in the formation and -

Everyone knows that drinking tap water is extremely harmful. But not everyone has the opportunity to buy bottled water or use special filters. Since time immemorial, there has been one reliable way to disinfect water - boiling. In the days of our mothers and grandmothers, many had a container of boiled water in the kitchen and children were ordered to drink only from it! Using the same water, some brewed tea or coffee, boiling it again in this way.

And today, many people often boil water several times, mainly for tea or coffee, being too lazy to pour out the liquid left in the kettle from the last time. This is especially true for offices, where one kettle is poured in the morning and water is boiled in it again every time someone wants to drink tea.

But will such a habit harm the body? Some supporters of a healthy lifestyle argue that it is impossible to boil water again in any case. How right are they?

To begin with, we will tell you what impurities are contained in tap water. Firstly, this is a considerable amount of chlorine, which is used to clean it, but it can irritate the skin and mucous membranes, and in large doses can contribute to the onset of cancer. Secondly, these are calcium and magnesium salts, which, when boiled, settle on the inner walls of the kettle - the well-known scale. Thirdly, heavy metals, such as lead, strontium and zinc, at high temperatures form carcinogenic compounds that provoke the appearance of cancer cells. And fourthly - viruses, bacteria and similar microflora.

Water "living" and "dead"

What happens to all these substances during boiling water? Definitely, bacteria and viruses die at the first boil, so this is simply necessary to disinfect water. Especially if the water is taken from a dubious source - a river or a well.

Heavy metal salts, unfortunately, do not disappear from water, and when boiled, their concentration can only increase due to the fact that a certain volume of water evaporates. The greater the number of boilings, the higher the concentration of harmful salts. But, according to scientists, their number is still not enough to cause significant harm to the body at a time.

As for chlorine, during boiling it forms a lot of organochlorine compounds. And the longer the boiling process lasts, the more such compounds appear. These include carcinogens and dioxins that can have a negative effect on the cells of the human body. Scientists in the course of laboratory studies have found that such compounds appear even if the water was purified with inert gases before boiling. Of course, the harmful effect of such water will not be noticeable immediately, aggressive substances can accumulate in the body for quite a long time, and then lead to the development of serious diseases. To harm the body, you need to drink such water every day for several years.

According to the British Julie Harrison, who has extensive experience in researching the impact of lifestyle and nutrition on the occurrence of cancerous tumors, every time water is boiled, the content of nitrates, arsenic and sodium fluoride becomes higher. Nitrates are converted to carcinogenic nitrosamines, which in some cases cause leukemia, non-Hodgkin's lymphoma and other types of cancer. Arsenic can also cause cancer, heart disease, infertility, neurological problems and, of course, poisoning. Sodium fluoride adversely affects the cardiovascular system, and in large doses can lead to sudden changes in blood pressure and dental fluorosis. Substances that are harmless in small quantities, for example, calcium salts, become dangerous when water is repeatedly boiled: they affect the kidneys, contribute to the formation of stones in them, and also provoke arthrosis and arthritis. Especially not recommended repeatedly boiled water for children, because the high content of sodium fluoride in it can seriously harm their mental and neurological development.

Another fact in favor of the inadmissibility of repeated boiling is the formation of deuterium in water - heavy hydrogen, the density of which also increases. Ordinary water turns into "dead" water, the constant use of which threatens with a fatal outcome.

However, scientists are of the opinion that the concentration of deuterium in water, even after several heat treatments, is negligible. According to the research of academician I.V. Petryanov-Sokolov, to obtain one liter of water with a lethal concentration of deuterium, you will have to boil more than two tons of liquid from the tap.

By the way, water boiled several times does not change its taste for the better, so tea or coffee made from it will not be what it should be!

To boil or not to boil?

Boiled water is still more beneficial for the body than water straight from the tap. So a single boil is quite reasonable. But it is better to refuse from the repeated one, since organochlorine compounds are clearly released with it, even in small quantities, and this is fraught for the body later. It is much easier to acquire a new habit: before each tea party, fill the kettle with fresh water, giving it a little “breathe” beforehand - to weather chlorine and other harmful substances. And be sure to clean the kettle from scale!

Every sane person tries to monitor his body and maintain good health. Drinking is essential and vital important function. If a person can do without food for about five or seven days, then the lack of water will begin to negatively affect well-being after 24 hours. This article will tell you about the harm and benefits of boiled water. You will be able to find out which liquid is better to use and in what quantity. You will also draw conclusions about useful and harmful properties boiled water. It is worth studying in detail each factor that affects the state of drinking fluid.

Boiled water: a general description of the substance

Before you find out what the harm and benefits of boiled water are, you need to say a few words about the processing of this raw material. Most often, the thermal effect on the liquid occurs in the kettle. Also, boiling can be done in a saucepan. In this case, the temperature of the liquid should reach one hundred degrees. After bubbles and a bubbling consistency appear on the surface of the water, we can say that the product has boiled.

Is it good or bad to drink boiled water?

The harm and benefits of boiled water have not yet been determined. The opinions of experts on this issue differ. The same is true with consumers. Some people are absolutely convinced that only such a liquid can be consumed. Other individuals claim that raw water is much healthier. Let's try to understand this issue. What are the harm and benefits of boiled water for the human body?

Product benefits

Boiling water - good or bad? There are several points that prove that the processed liquid is useful for humans. Let's consider them in detail.

Purification of bacteria and harmful compounds

During thermal exposure, the liquid is subjected to high temperatures. As a result, all harmful bacteria and microorganisms that are completely unnecessary to the human body die. Also, boiling destroys complex chemical compounds such as chlorine and its derivatives. In this case, salts and various impurities are formed, which a person separates from drinking liquids. This is what helps to protect the body from harmful effects.

Improving taste sensations

After boiling, the product acquires a milder taste. This fact improves mood after taking the next portion of the liquid. This state is beneficial for a person and his body.

All people consume tea and coffee only after preliminary boiling. This is a generally accepted rule and is not subject to any discussion.

Product harm

Is boiled water harmful? The benefits and harms of the product are undeniable. You already know that during heat treatment, many pathogenic bacteria and harmful compounds disappear from the liquid. However, there is also harm from such an impact. Consider the main points that talk about the futility of boiling water.

Loss of molecular structure

During exposure to high temperatures, the destruction of the main water molecules occurs. Many people say that boiled water is a dead liquid. Drinking like this is absolutely useless. Surely everyone knows that the human body is more than 50 percent water. With regular use of dead fluid, the body loses beneficial compounds and ages faster.

Salt increase

The health hazard of boiled water is that some of the liquid evaporates during processing. This leads to the fact that the amount of salts in the product increases. All this can be seen with the naked eye. Take a look at the pot in which you boiled water. There are on the walls white coating, which is also present in the liquid itself. By regularly drinking this drink, you fill the body with harmful salts and compounds.

As a result of such drinking, the kidneys, bones, blood vessels and many other organs of a person can suffer greatly. Salts are very harmful for babies and expectant mothers. It is also not recommended to drink this liquid for the elderly, who already have many diseases without it.

The presence of bacteria and viruses

No matter how much a person would like, during the thermal treatment of water, viruses and pathogenic bacteria are not completely removed. Some microorganisms require prolonged boiling. Few people wait 10-20 minutes after the appearance of a bubbling surface. Most electric kettles turn off on their own. Because of this, many bacteria remain in the drinking liquid, which are more harmful than evaporated ones.

Formation of new compounds

All people think that after boiling, chlorine disappears from the liquid. However, this is not quite true. This compound is heated and goes into a slightly different form. Trihalomethanes are formed in water. Also, the following components remain in the liquid after boiling: mercury, titrates and iron salts.

The use of such substances is much more dangerous than ordinary chlorine itself.

When does boiled water become harmful?

Within a few hours after boiling, the liquid becomes not only useless, but also dangerous to health. Salt precipitation and an increase in the number of harmful compounds occur in it.

It is also very dangerous to re-boil the liquid. With a similar treatment, complex metals are precipitated, which pose a great threat to human health. Scientists have proven that the regular use of such water leads to the destruction of bones. Also, over time, immunity decreases, and a person more often receives viral and bacterial infections.

Re-boiling water is most often done in the same container as before. The formed plaque on the walls of the kettle or pan heats up again and reacts with the collapsing liquid molecules. All this is not only not beneficial, but can also be very dangerous for humans.

How to protect yourself when drinking boiled water?

If you still prefer to drink a thermally processed liquid, then you need to do it correctly. Observe the following conditions:

• drink water immediately after it boils, do not wait until it has completely cooled down;
• after processing, pour the contents of the kettle into a separate container (preferably glass);
• never store water in the same vessel in which it was boiled;
• regularly wash the kettle from scale and plaque;
• do not drink the liquid after 2-3 hours after boiling, but rather prepare a new portion;
• periodically consume raw purified liquid.

Summing up and conclusion

So, now you know what boiled water is (the benefits and harms of the product are described above). Having concluded, we can say that the raw liquid is less dangerous than the thermally processed one. So what kind of water should you drink? Processed or not?

It all depends on the region in which you live and the condition of the tap fluid. Find out what kind of boiled water you have. The benefits and harms of this product can be tested in a special laboratory. AT recent times Purifying filters have become very popular. They rid the liquid of harmful compounds and fill useful properties. Drink only good water and always stay healthy!

A person whose body consists of 70% liquid, it is vital to drink enough water. It is necessary for the normal course of all processes in our body. But what is the best water to drink? Liquid that flows from the tap into big cities, unsuitable for drinking, so many people prefer to boil water. But is everything so simple? Is it good to drink boiled water or is it a complete harm? These questions need to be dealt with in more detail.

What happens when water boils

In physics, boiling is understood as the process of transition from a liquid state to a vapor state, accompanied by the appearance of bubbles at a temperature of 100 degrees. Conventionally, the boiling process is divided into the following stages:

• Small single bubbles appear at the bottom of the container, which then rise to the surface of the water and are grouped mainly at the walls of the vessel.
• There are a lot of bubbles. They provoke turbidity, and then whitening of the liquid. This stage is also known as the "white key" because the process is similar to the running of spring water. Tea lovers often remove the kettle from the stove at this stage, preventing the water from boiling.
• Then there is intense seething, bursting of large bubbles and a strong release of steam. Water splashes out of dishes.

The benefits and harms of boiled water still raise a lot of doubts. Boiling tap water solves the following problems:

• Kills microorganisms;
• Reduces water hardness;
• Reduces chlorine content.

This is the main benefit of boiled water. Hard salts remain in the form of sediment at the bottom of the container, most of bacteria die. In particular, boiling is relevant in the hot season, when, despite chlorination, the number of microorganisms in the water becomes larger.

However, boiling does not destroy the hepatitis A virus, the botulism bacillus. In addition, if the water is standing for a long time, bacteria can get into it again. Therefore, boiled water, the benefits and harms of which are not so obvious, cannot be stored for several days. Boiling makes water softer. At the same time, the concentration of certain salts becomes higher due to the evaporation of the liquid.

Danger and harm of boiled water

However, studies show that boiling does not cope with all microbes. So, in order to kill the hepatitis virus, you need to boil water for half an hour. A botulism stick can disappear only after fifteen minutes of boiling, and its spores die in no less than five hours! Of course, no one will boil water that much. Also, the harm of boiled water lies in the fact that active pesticides, nitrates, heavy metals, phenols, oil products are not destroyed in it. And a number of useful components in water, such as calcium and magnesium salts, settle on the walls of the vessel.

It is also worth considering that boiling, especially for a long time, causes a clear decrease in the volume of water. A precipitate forms in the liquid that remains. If you add raw water to the settled water and boil them together, the percentage and concentration of heavy water will increase. And this poses a serious threat to health. Therefore, experts insist that it is by no means possible to dilute boiled water with unboiled water.

Many believe that the benefits of boiled water for the body is that it is purified from chlorine. But studies have shown that this microelement, when boiled, begins to interact with other compounds, which can cause the formation of dangerous trihalomethanes. Also, heating the water causes oxygen to escape from it.

Answering the question of whether boiled water is healthy, many experts believe that it becomes “dead”, so it cannot bring any value. It does not saturate the body with valuable minerals and the moisture that it needs. It is also known that some time after boiling, the water is again infected with various microorganisms that can be in the kettle or simply fly in the air. Although, of course, this is quite a significant time for us to have time to drink tea. Be that as it may, boiling cannot be considered a 100% way to purify water from everything that can be harmful to our body.

Is there any benefit in boiled water?

Understanding whether boiled water is good for drinking, it is worth noting that it is softer than tap water. Drinking water that has been boiled once is believed to improve mental and physical activity, removes toxins from the body, improves blood circulation.

Some traditional healers recommend drinking warm boiled water, especially on an empty stomach. Speaking about the benefits of boiled water in this form, they highlight its ability to improve metabolic processes and accelerate the breakdown of fats. In fact, any pure water, if you warm it up, because the point is not in boiling.

Is boiled water good or bad? This process really makes it better for the body than tap or well water, which contains a lot of bacteria and aggressive particles. But boiling does not make the water in the form in which it is completely healthy and safe. It is recommended to use it only if you have no other way to purify the water. Then it will help reduce the risk of poisoning and other negative consequences. But it is recommended to boil water for at least 8-10 minutes, which our usual electric kettles are not designed for. When using boiled water, remember that it is undesirable to store it in a container where it was boiled. It is best to pour it into a glass container. The kettle must be descaled before turning it on.

Another important question is whether it is harmful to boil water a second time. Here it is worth considering the following points:

• Boiling takes away the taste of water. Water that you boil several times will not taste good at all. It may have an unpleasant metallic taste.
• Boiling does not kill impurities and salts. The more often the water is boiled, the more oxygen evaporates from it, and the higher the concentration of these salts becomes. The drink becomes toxic and, although this toxicity is small, it tends to accumulate, therefore Negative influence will be present.
• We usually boil chlorinated water. Chlorine, as we have already said, when heated, reacts with organic substances and forms dangerous toxins. The more water is boiled, the higher their concentration. Based on this, the answer to the question of whether repeated boiling of water is harmful or not can be positive.

Thus, water boiled several times retains very little of the benefit that our body needs from drinking water. And the more you boil it, the more "dead" it becomes. Having found out whether it is harmful to boil water several times, we can conclude that it is better to limit yourself to a single boil.

So what is the best water to drink?

If you want to drink water with health benefits, then it is best to use not boiled, but specially purified water. For this, special filters can be used, which are not a problem to buy today. They help purify water from heavy metals, chlorine, bacteria and other harmful components. There are jug-shaped filters, as well as filters that are installed directly on the water pipe, and already purified water flows from the tap. Also a good option- Drinking bottled water. It is guaranteed to be cleaned and does not cause any harm to the body.

If the water that you have access to now does not inspire confidence in you, it is better to boil it and protect yourself from poisoning and other unpleasant consequences. Indeed, in which water is more useful: boiled or raw, the choice is definitely on the boiled side (of course, if the raw water has not been purified). Therefore, it is strongly not recommended to use tap water, but you can resort to boiling - sometimes it makes life much easier and protects us. Monitor the quality of the water you drink.

Water is an essential component of life in

planet earth

Water also plays an important role for humans. The daily need of the human body for water is 2-3 liters. Not all the need for water is met by people drinking pure water. Someone likes to drink juices or soda, someone likes to drink

For making hot drinks

Coffee, cocoa, etc., water must be boiled. As a rule, one boil is more than is needed at a certain moment to satisfy the need. Boiled water remains, which is re-boiled the next time. There is such a “horror story” among the people that if boiled water is boiled again, then the water becomes “heavy” - harmful to the body. But it's not. The harm of re-boiled water for humans is nothing more than a myth.

The Caravan publication cites the opinion of medical observer Tatyana Ressina, who notes that there are many misconceptions around boiled water that are fundamentally wrong.

Myth one

If you boil water several times (more than once), then the water becomes "heavy" - harmful to the body.

Myth two

As soon as the water boils, you need to stop the boiling process, since prolonged boiling of water also makes it “heavy” and harmful to the body.

Myth three

If raw water is added to boiled water and boiled, it will still be harmful to health.

According to the distributors of these myths, if the boiled water was not used in full, then during the next boiling process, the water must be completely renewed - boiled pour out and pour raw water into the kettle.

All these are myths

the medicine

there is no evidence that re-boiled water or boiling water for too long, as well as adding raw water to boiled water before re-boiling, are harmful to the human body, notes Tatyana Ressina. According to her, perhaps the first disseminators of these myths accidentally stumbled upon information about heavy water and began to spread fears, and these fears, picked up by popular rumor, intensified many times over.

It is almost impossible to make heavy water from "ordinary" water by boiling at home.

During the boiling process, “ordinary” water can become heavy water, but it’s not so simple and it’s almost impossible to achieve this at home. If we talk about repeatedly boiling water in a kettle, then it takes more than a dozen years to boil it again for the water to become heavy. For obvious reasons, it will be impossible to do this, if only because the water by that time will have time to evaporate from so many boils. Therefore, there is nothing to fear - you can safely boil already boiled water and drink it calmly.

What is the danger

The danger in the process of boiling or re-boiling may be different. If you decide to re-boil water, then pay attention to how much time has passed since the last boiling process. If a sufficiently long time has passed, then it is better to drain the water and pour fresh water into the kettle. The fact is that various microorganisms develop faster in stagnant water, and more dust and other debris gets into it.

According to experts of the Medicine and Health News Department of the Market Leader, water plays a very important role in human life. Our body consists of up to 3/4 water and the loss of more than ten percent of this fluid is fatal. A person can live much longer without food than without water.

Water - not only supports human life, it forms almost all other processes on the planet. And this is not surprising, the surface of the Earth is more than seventy percent covered with water. Water plays a key role in the formation

Human evolution depended on climate change

and in life.

Water plays an important role in the economy -

Nestle hopes for strong water sales

Lack of water (drought) or excess water (floods and floods) can cause enormous damage to the agricultural industry. As well as for raw materials -

oilgasgold

Diamonds - there is also a fierce struggle for water in the world. The most pressing issue with water resources stands in arid regions - in Africa, in Central

Periodically, water conflicts flare up between

and Pakistan, in addition, experts predict water wars between the states of the Central Asian region -

AT Central Asia the water war could start