home › Cooling system › Can drinking water be re-boiled? About tea and boiling water.

Can drinking water be re-boiled? About tea and boiling water.

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 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 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 some time. 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 of cancerous tumors, each time water is boiled, the content of nitrates, arsenic and sodium fluoride becomes higher. Nitrates are converted to carcinogenic nitrosamines, which individual cases cause leukemia, non-Hodgkin's lymphoma and other cancers. 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, such as 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 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 the repeated one, since organochlorine compounds are clearly released with it, even in small quantities, and this is fraught with 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!

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 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"

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, such as 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.

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

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?

How many copies are broken in Lately in an attempt to answer this simple question! Mutually exclusive arguments and substantiations of ecologists, chemists and other specialists baffle the common man in the street. Whom to believe? To boil or not to boil? Let's try to figure it out, relying only on logic and school knowledge.

Which water is healthier - raw or boiled?

I think the answer is obvious - raw! Life-giving moisture - this is how we respectfully address, and, of course, not boiled. It would never occur to anyone to water flowers on the windowsill with liquid that has passed the 100-degree mark or fill an aquarium with fish with it. Boiling destroys some trace elements necessary for the normal functioning of the body.

Spring, and even more so, tap water are not samples of purity. In addition to useful, they contain many harmful components.

The first thing that comes to mind is chlorine - it is customary for them to disinfect to eliminate microorganisms. This chemical element poison itself. When combined with water, it becomes a source of carcinogenic substances that affect the kidneys, liver and nervous system. Add here aluminum, arsenic, pesticides, herbicides and a whole host of human waste products that enter drinking water as a result of the natural cycle in nature.

A relative solution is to install additional household filters, but even they do not completely solve the problem, only reducing the amount of unwanted “chemistry and biology”.

Logical conclusion: one water from the tap to satisfy the body's need for water modern man not able, if his own health is dear to him, of course. Not without boiling. Moreover, such drinks, which have become firmly established in our everyday life, like tea or coffee, cannot be prepared with cold water.

How exactly to boil?

How many times? Most experts believe that it is better to boil the same water only once, and pour out what remains in the kettle without a shadow of pity.

The most advanced argue that when re-boiling, the water “gets heavier” - the evaporated oxygen atoms are replaced by hydrogen isotopes, and the same chlorine, without completely disappearing, forms combinations dangerous to health with other elements of the periodic table. Naturally, having settled, all this muck settles at the bottom of the kettle, and when boiled again, it begins to show signs of life again, forming new compounds.

In addition, among many physicians and biologists there is an opinion that with the constant use of water that has passed the boiling point, the body's immune response decreases.

There are those who advise drinking only boiled liquid, but they are a clear minority.

Let's just summarize

our body vitally needs a certain amount of “living” water;
to fully satisfy the need for liquid, it is also necessary to use boiled water;
it is best not to bring it to a full boil - a significant change in volume leads to an increase in the content of chemicals;
moreover, it is not necessary to re-boil or “refuel” an already boiled liquid.

By following the last two tips and periodically cleaning the kettle from salt scale, you can safely get reasonable doses of caffeine contained in invigorating drinks along with water!

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 boil sea water and it’s 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.

For many, heat treatment has been and remains the only way to purify water from harmful impurities and microorganisms. Some people, seeking to increase the degree of purification, bring life-giving moisture to a boil two or even three times. Why you can not boil water twice and how it threatens health, we will tell in our article.

Why does the body need water?

Almost everyone knows that the human body is 80% liquid. But few people know that its volume ranges from 30 to 50 liters depending on age: the older the person, the smaller its share.

Water was given the magical power to become the juice of life on Earth. Leonardo da Vinci

Most of the water is contained in the cells: the volume of intracellular fluid is approximately 28 liters. In second place in terms of water content is free liquid - up to 10 liters, followed by blood, intestinal and gastric juices, lymph, cerebrospinal fluid, bile and saliva.

Water, constantly circulating through the body, takes part in all metabolic processes. With its help, toxins, dead cells, viruses and bacteria are removed through sweat and urine. We already wrote “How much water do you need to drink to be healthy”, so now we will not touch on this issue, but we will focus on why you can’t boil water twice.

Why is it said that water cannot be boiled twice?

Boiling is perhaps the only method of water disinfection available to everyone without exception. Many people use it to disinfect tap water, and almost everyone uses it to brew coffee and tea. Sometimes we are too lazy to replace the liquid once brought to 100 ° C with a new one, and then we hear from our mothers that you can't boil water twice. Let's see if this is the case.

How does heat treatment affect the quality of a liquid? Any water, unless, of course, you are dealing with distilled water, in addition to hydrogen and oxygen, contains a lot of impurities, including:

calcium and magnesium salts, which are deposited on the walls of the kettle during boiling, but do not pose a particular threat to the human body;

heavy metals: strontium, lead, zinc, capable of forming carcinogen compounds at high temperatures, causing oncological diseases;

chlorine, which irritates the skin and mucous membranes and provokes the appearance of cancer cells;

viruses and bacteria, both pathogenic and completely harmless.

During boiling, H 2 O evaporates, but heavy metal salts do not go anywhere, and their concentration in the liquid increases. True, scientists assure that they are still not enough to cause significant harm to the body.

In addition, during heat treatment, “light” hydrogen escapes, but “heavy” (isotopes of hydrogen) remains. Moreover, its density increases, and "living" water turns into a "heavy", saturated with deuterium. Regular use of such water leads to death.

Deuterium (lat. "deuterium", from the Greek. δεύτερος "second") - heavy hydrogen, denoted by the symbols D and ²H, a stable isotope of hydrogen with an atomic mass equal to 2. The nucleus (deuteron) consists of one proton and one neutron. Wikipedia

However, according to studies conducted by academician I. V. Petryanov-Sokolov, to get 1 liter of deadly water, 2163 tons of tap water will be required. In other words, the concentration of deuterium in twice boiled water is so small that it is not worth worrying about.

As a result, of all the consequences of double boiling, the following can be distinguished as harmful:

change in the taste of the liquid is not for the better;

"live" water, losing during heat treatment necessary to a person microorganisms, turns into "dead", i.e. useless;

the formation of chlorine-containing carcinogens and an increase in the concentration of heavy metals.

That's why you can't boil water twice, however, and one-time heat treatment leads to the same results.

How to get "living" water?

Not everyone has the opportunity to drink spring water or purify tap water with expensive filters. For them, there is an easy way to get usable life-giving moisture.

Collect water in a jar and, without closing it with a lid, let it stand for a day. During this time, most of the chlorine will evaporate. Then freeze it in the refrigerator (just keep in mind that when freezing, water expands, and the jar, if it is full and closed, may burst), but not completely: let a puddle remain on the surface. This is "dead" water with a high content of deuterium - it turns into ice last. Drain it, after which the ice can be thawed and drunk.

Hear some more advice from a nutritionist who knows how to purify water at home:

Take it, tell your friends!