What you need to know about the bottled water before you drink it

What kind of water you need

There is a common myth that virtually any water sold in bottles - Mineral. Of course, it is not. All bottled water can be divided into three main categories: fresh, mineral and artificially mineralized.

Drinking - this is the usual city water, which was purified and bottled with beautiful labels. It is not enough salt so that it could be considered mineral. In this case, the drinking water is safe for health, it can be used as a thirst quencher, as well as for cooking, making tea, coffee and other beverages.

Natural mineral water obtained from artesian wells - holes in the soil, having a natural or artificial origin. Their depth is from 30 to 250 meters, depending on the level at which overlie underground sources. Artesian water may contain calcium, magnesium, sodium, potassium and other biologically active substancesDrinking mineral water in the treatment and rehabilitationThat are beneficial for health. It is used for the prevention and treatment of various diseases.

Artificially mineralized water - this is a common drinking water, which is enriched with minerals and bottling. The problem is that artificially achieve the same ratio of salts and biologically active substances, both in the natural mineral water, practically impossible. Therefore mineralized water has no preventive and therapeutic effect.

Any bottled water - bottled mineral or artificially mineralized - may be carbonated or noncarbonated.

What is mineral water

Various types of natural mineral water are different salt content. Depending on their concentrationGOST P 54316-2011. Water Natural mineral. General specifications mineral water is divided into three types:

• Dining (less than 1 gram of salt per 1 liter of liquid). This water with weak mineralization - it is possible to drink every day, used for food and beverage. She has a pleasant mild taste and odor-free or impurity.
• Medicinal table (1 to 10 grams of salt per 1 liter of liquid). The concentration of the minerals in such water is high enough. If you drink it every day, you can disrupt the acid-alkaline balance in the body. To avoid this, before the addition of medical-table water in the diet, it is necessary to consult a doctor. He will tell you how much mineral water and how often you should drink it. Medical-table water has a specific taste, so is not suitable for cooking, tea or coffee.
• Therapeutic (more than 10 grams of salt per 1 liter of liquid). Such water contains a lot of salts. It is used to treat certain diseases, but it can hurt a healthy person. Therefore, drinking healing water can only be prescribed by a doctor.

The concentration of salts is not the only factor that should be guided in the selection. helpfulDrinking mineral water in the treatment and rehabilitation properties of mineral water directly depend on what kind of chemical elements included in its composition. For example, chlorideSodium chloride water Konstantinovskiy field and effectiveness in the treatment of kidney diseases water is recommended in case of problems with the kidneys, and bicarbonate helps to reduce total cholesterol levelsEffect chloride-bicarbonate-sodium mineral water "Karachinskaya" on lipid metabolism.

Are plastic bottles are dangerous

Packaging is another factor that affects the properties of the liquid. For prolonged storage or re-use of bottles, some chemicals may penetrate into the water and to change its composition. But plastic is plastic strife!

In the international systemASTM Plastics Committee Releases Major Revisions to Resin Identification Code (RIC) Standard ASTM International markings distinguish seven of his species. They are marked with numbers from one to seven, each of which represents material from which the bottle was made. Its abbreviated chemical name is also indicated.

For example, if on the bottom of the bottle in a triangle of arrows indicated the number "1", and below there is the abbreviation PET or PETE, it means that the bottle is made of PET. The arrows indicate the possibility of processing of this product.

It is PET or PETE is most often used for the production of bottles. In general, this material is safeCode of Federal RegulationsBut only for a single application. Re-pouring water in a tank is undesirable since eventually it starts to give off toxicPolyethylene Terephthalate May Yield Endocrine Disruptors substances.

In addition to polyethylene, the following types of plastic:

• «2» (HDPE) - high density polyethylene.
• «3» (PVC) - PVC.
• «4» (LDPE) - low density polyethylene.
• «5» (PP) - polypropylene.
• «6» (PS) - polystyrene.
• «7» (PC) - polycarbonate, polyamide, and various mixtures of other types of plastic.

The materials marked with the numbers "3", "6" and "7" are considered the most dangerousBisphenol A Exposure: Human Risk and Health Policy for health. They contain substances that can cause malfunction of the endocrine system. It is best to opt out of buying water from such a marking. But the products, marked with the numbers "2", "4" and "5" on the contrary isThe Hidden Costs of a Plastic Planet the least toxic.

Can soda hurt

There are two types of carbonated water: natural and artificial. Naturally soda can only be mineral water, it goes from the source is already saturated with carbon dioxide.

Artificially aerated mineral, and mineralized drinking water. This aeration is chemical and mechanical. The first is due to interaction of acid and baking soda, and the second - due to gas saturation in water siphons under high pressure.

The extent of carbonation of water depends on the concentration of carbon dioxide. If the index is in the range of 0.2-0.3% - is lightly carbonated water. Accordingly, 0.3-0.4% - srednegazirovannaya, and over 0.4% - silnogazirovannaya.

A few glasses of soda a week, is unlikely to do much harm to your health. But if we talk about the constant use, it could have a negativeEffect of carbonated water manufactured by a soda carbonator on etched or sealed enamel affect the tooth enamel and cause bloating.