Generally speaking, you can drink it when it reaches 8 degrees or above, but if you want to ensure certain safety and health, you need to drink it when it reaches 1 degrees or above.

Correct skills of boiling water:

When the water is about to boil (8-9 degrees Celsius), open the lid, wait for the water to boil for 2-3 minutes, and then turn off the fire. If you can't grasp the time when the water will boil every time, open the lid immediately when the water boils, and then wait for 2-3 minutes.

Reason:

1. Now there are more and more organic pollutants in water, and some substances are volatile, which will volatilize with water vapor when heated. Therefore, when the water is about to boil, open the lid of the kettle and cook for two or three minutes after the water is boiled, so that these substances can be volatilized to the maximum extent.

2. If the water is boiled for too long, it will also cause water aging and form harmful substances. Therefore, healthy water that meets human needs should be fresh, and the boiling time should not be too long.

Extended information:

Hazards of boiling water:

1. Fungal infection

Boiled water contains many organisms, pathogens and viruses, and the human body has certain immunity. Drinking boiled water for a short time will not cause physical discomfort. If you drink it frequently, it will easily infect fungi, causing acute and chronic gastroenteritis.

2. Increase the risk of cancer

Most of the drinking water in cities comes from rivers and lakes, and then it is filtered and chlorinated by waterworks to remove a large number of microorganisms and impurities in the water. At the same time, a lot of organic substances and chloride ions remain in the water, which will produce toxic carcinogenic compounds such as halogenated hydrocarbons and chloroform, and cannot be drunk for a long time.

Reference: People's Daily Online-Can I drink water without boiling? Do you know the correct way to boil water?