Boiling water: contains minerals and impurities, and has no fixed pH value (in different regions).
Purified water: H2O, purified water. (Drink too much and your body lacks minerals)
Mineral water: no impurities, relatively fixed pH value, containing beneficial minerals (harmless for long-term drinking).
Pure water was originally purified and used by astronauts in the spacecraft cabin. After this kind of water was used for commercial development, some procedures were added. However, while removing impurities such as bacteria and purity, minerals beneficial to human body are also removed from water. Long-term drinking can easily lead to mineral deficiency and cause diseases. Of course mineral water is the best.
However, these two kinds of water will inevitably cause some pollution in the process of reproduction, although they are the same as pure water. The healthiest water is boiled water at home, which has undergone its own high-temperature disinfection, and the key is that the water also contains minerals contained in mineral water, even richer than ordinary mineral water. Personally, it is the most worthy water for people to drink for a long time. But life experience tells us not to drink water overnight, because long-term storage will cause secondary pollution and water quality deterioration.