Is the water in Nongfu Spring hard or soft?

According to the national GB5749-2006 Hygienic Standard for Drinking Water, the total hardness of hard water should be less than 270mg/L, while the total hardness of Nongfu Spring water is far below this standard. Nongfu spring water has been filtered and purified for many times, and most minerals such as calcium and magnesium have been removed, so it is soft water. Soft water is milder to skin and hair, less prone to scaling and more suitable for drinking.