1, different sources
Pure water is water produced by removing impurities and pollutants through various treatment technologies, and its water source can come from tap water, groundwater and so on. Natural water refers to untreated natural water directly obtained from natural water sources; Mineral water refers to the natural water containing specific minerals from groundwater without filtration and disinfection.
2. Different mineral contents
Because of the different sources of raw water, the mineral content of the three kinds of water will be different. Purified water will remove most minerals in the treatment process, so the mineral content is very low; Natural water comes from natural water sources, in which the mineral content is relatively high; Mineral water contains a certain amount of specific minerals.
3. Different tastes
Due to different mineral compositions and different treatment methods, the tastes of the three kinds of water are also different. Pure water tastes light and has no special taste; The taste of natural water is sweet, and some water sources have a faint earthy smell; In addition to sweetness, mineral water may be salty or hard for some people.
Scientific drinking water method
The drinking water standard put forward by WHO in 2003 is that under the quiet state of 25 degrees Celsius, air humidity ≤60% and no exercise, the daily drinking water quantity of people is: children 1 liter; Adult male 2.9 liters.
2.2 liters for adult women, 4.8 liters for pregnant women and 3.3 liters for lactating women. In the case of high temperature or strong physical labor, the drinking water standard of different groups should be raised to 4.5 liters/day.
Many people often think of drinking water when they are thirsty. When they picked up the water, they poured it down. As we all know, normal people should drink water regularly and should not wait until they are thirsty. Experts recommend that the correct way to drink water should be 3: 3: 3, that is, drink three cups a day, three times a day for three minutes each time.