Mineral water is so called because it contains mineral salts and trace elements. These are primarily salts of calcium, potassium, sodium, magnesium, as well as iodine and fluorine.
Such water differs from tap water in that it does not undergo any treatment, which means it retains its natural composition. Depending on the level of mineralization – the content of mineral substances in a liter of drink – mineral water can be a canteen, a medicinal canteen and a curative one.
All three species, with rare exceptions, are usually weakly carbonated. This manipulation disinfects water and allows to increase its shelf life.
But this is where the similarities end and significant differences begin.
Water with mineralization not exceeding 2 g / l is a table. The first category has a salinity of 500 mg to 2 g / l, the highest – no more than 500 mg / l. The baby can be given only the second variety, but since birth, using it for breeding the mixture or feeding.
However, bubbles will first have to be released, even though they are of natural origin. To do this, pour water into a glass and stir it with a spoon until they disappear.
Salinity of medical table water – 2–8 g / l. This drink improves metabolism, and usually it is drunk as prescribed by the doctor in courses, and not systematically: a high concentration of salts causes the kidneys to work with double strength.
Only a pediatrician can advise him on a child, and only after a year. Medicinal waters have a salinity of 8–12 g / l.
They are drunk only as prescribed by a doctor for certain diseases (bronchitis, gastritis, chronic constipation) in a strictly calculated dosage.
In order not to be mistaken and choose a safe drink, you need to pay attention to the label. It is equally important to know how to preserve its beneficial properties.
The label of mineral water always indicates the type of drink, chemical composition, degree of carbonation, ion concentration, number and location of the well, date of bottling and shelf life. Water that can be drunk to children should contain 25–80 mg / l of calcium, 50–55 mg / l of magnesium, 2–20 mg / l of potassium, 30–400 mg / l of bicarbonate, and 0.6–0 fluoride ions. , 7 mg / l, iodide ions – 0.04–0.06 mg / l (40–60 µg / l). It is usually possible to store mineral water for a year in a dry cool place at a temperature of from +5 ºС to +20 ºС.
An opened bottle should be kept in the refrigerator, but not longer than 2 days: then the drink loses its beneficial properties and starts to deteriorate.