Mineral water contains minerals, usually from mountainous areas, or underground mineral water is not necessarily pure water. Pure water is a relative concept, and there are different grades according to its purity. Pure water generally contains little impurities or distilled water, and is the purest water. Distilled water obtained by heating and cooling water and collecting steam is generally used for chemical experiments in laboratories. Distilled water is not suitable for daily drinking. At present, distilled water is also available on the market, but there are not many choices. In packaging, many people confuse it with mineral water because it is no different from ordinary mineral water. Distilled water is artificially purified water with a purity of 99.9%, but the mineral components in the water can be ignored. The function of this "pure water" in the body is simply to act as a transportation job, such as taking out what cells and tissues refuse. There are no fewer than 20 kinds of mineral water in the mineral water market. Mineral water refers to a natural water source located underground, naturally gushing or artificially extracted, and rich in iron, calcium, sodium and magnesium. In the process of treatment, mineral and carbon dioxide are not added to mineral water. Except physical sterilization, water quality cannot be treated with chlorine or other methods. In addition, automatic equipment must be used for filling and sealing to avoid pollution. Generally speaking, it can only be called "natural mineral water" if it gushes out of the ground without artificial processing and filtration. If it is artificially extracted clean groundwater, it is called "general mineral water" after moderate sterilization. If the international standard of mineral water regards mineral water as an international standard, the regulations are very strict. 1. Height: spring water is 50-2500m above sea level, and mountain spring water is over 2500m above sea level. 2. Water source: Fiona Fang 10 km should have no water pollution change. Three, spring water must naturally gush out, filtered by other rocks, and detected to be rich in natural minerals. 4. It must be packaged directly at the place of origin, and it is best to seal the cans within 24 hours to ensure that the cans are sterile and pollution-free. 5. The water quality must be continuously tested for about 10 years to determine the mineral content, and its stability can only be confirmed after obtaining the mark of the International Water Quality Association. There are many kinds of bottled water in the market, and the brands and drinking water names are different, so consumers should pay more attention to distinguish them. Such as natural spring water, natural mineral water, foamed mineral water, drinking water or distilled water.