Second, the total amount of dissolved solids in water should be about 30 mg/L. ..
Third, the pH value of water is slightly alkaline, that is, the pH value is slightly greater than 7.
And "normal water" can basically meet these conditions.
From this perspective, we pursue "purity", but we don't get the health we want. At this time, it is better to return to "nature"-for example, drinking "normal water". Therefore, some experts suggested that it is best to drink boiled tap water, especially children, and called for the promotion of a "drinking boiled water campaign". For example, Zhang Wenqing, Ph.D. in Microbiology, An Fourth Military Medical University, advocated "Fill a bottle of cold boiled water, stuff it into the freezer, and wait 10 minutes to ensure that you are refreshed".