Older people know that you can’t dilute raw water with boiled water - there will be an intestinal upset. No one really knows where the belief came from. Today there are several theories about the prohibition of mixing, but none of them is scientific.
According to legend, if you mix raw and boiled water, the following can happen:
- stomach ache;
- decreased immunity and the development of various chronic diseases.
A variety of theories explain health damage. Consider the main ones:
- “The body does not understand what they are given to it, because boiled water is dead, and unboiled water is living.” It is believed that boiling neutralizes all beneficial substances. But in reality, the raw water from the healthy contains mainly salts. After boiling, their concentration decreases slightly, but they do not completely disappear. That is, the statement about "dead" water is a myth.
- “Raw water has a memory, but boiled water does not. When mixed, the liquid becomes inhomogeneous and harmful. " Talk about memory has been going on for quite some time. But no evidence of this has been found. Often behind them is a banal fraud with the sale of vodice, charged for success (luck, from certain diseases, etc.).
- “Mixed water has a salt composition that can cause diarrhea.” A certain composition of salts can really act as a laxative. But in ordinary water, salts cannot combine in this way.
- "Once in disinfected boiled water, microorganisms from raw water multiply at a catastrophic rate." In fact, the growth of bacteria is affected by heat and a nutrient medium (sugar). But even under favorable conditions, infection will take some time. Warm sweet tea with the addition of unboiled water will deteriorate after about 4 hours.
Most likely, the warning came from ancient times, when drinking water was collected from rivers and wells. Using it without boiling was dangerous. The liquid was disinfected by boiling. Adding a raw portion neutralized the whole effect - the water was again filled with microorganisms and could cause an intestinal upset or infection.
Or is it still possible?
All the arguments about the dangers of mixing boiled and raw drinking have no scientific justification. Moreover, they are doubtful in terms of simple logic. In fact, the result of such actions is only one - boiled water, when diluted with crude, becomes unboiled again.
- In terms of disinfection dilution of boiled water without boiling does not make sense and neutralizes the entire effect of heat treatment. If the crude liquid contains viruses and bacteria, then they will be transported and multiply. Even a small amount of infected liquid is enough to spoil the boiled water. However, it is not a fact that it contains harmful microorganisms. Chlorination and filtration used in the modern world make it potable.
- In terms of compositional changes dilution of raw boiled water practically does not affect the concentration of impurities. When heated, chlorine leaves with the steam, and the salts are converted to scale and deposited on the heating elements. Adding raw water leads to the fact that the composition again appears impurities that came out during heat treatment.
It turns out that the question of whether it is possible to mix boiled and raw water is similar to the question of whether it is possible to drink unboiled water. If it is clean and filtered, then why not.
So, the statement that boiled and raw water should not be interfered is a belief that has no scientific evidence. When mixed, the liquid again becomes crude with all the ensuing consequences. It is not dangerous for health, unless the water is drawn from a river or other dubious source.In fact, many people dilute tea with cold unboiled water and do not observe diarrhea or any other negative effects.