Seven standards of healthy water: no toxic, harmful or odorous substances; Moderate hardness; The mineral content needed by human body is moderate; The pH value is slightly alkaline; The content of dissolved oxygen and carbon dioxide in water is moderate; Small water mass; Water has a strong physiological function.
Relevant regulations: The label of packaged drinking water shall conform to the national food safety standard "General Rules for Packaging in prepackaged foods", and shall be clear, eye-catching and durable, so as to facilitate consumers' identification and reading when purchasing. The product name of packaged drinking water shall not be marked with such unscientific contents as "active water", "small molecular water", "functional water" and "energy water".
Healthy water
1, mineral water
Mineral water contains a variety of mineral elements and other nutrients, which is suitable for human body to replenish water.
Step 2 clean water
Pure water, also known as distilled water, removes some harmful substances and elements, is safe and suitable for most people to drink.
Step 3 filter tap water
The filtered tap water is mainly treated by the waterworks and has reached the standard. This kind of water has been in line with human health after being filtered by water tank and water pipe network, but it is best to boil it when drinking because it contains certain impurities or bacteria.
4. Water filtered by water purifier
The water filtered by the water purifier mainly filters out some impurities and other harmful substances in tap water through the filter, which is safer and healthier. It can be drunk directly or after boiling.