The correct way to rent a house and boil water

We usually drink tap water. After ordinary Jiang Hushui is sent to the waterworks, it should be chlorinated to remove microorganisms and other impurities. However, at the same time, chlorine interacts with the residual organic matter in water, which will form toxic carcinogenic compounds such as halogenated hydrocarbons and chloroform. So, be sure to boil before drinking water. However, boiling water seems to be a trivial matter in daily life. In fact, there is still a lot of knowledge in it.

1, we usually boil water, only to kill microorganisms in the water, and boiling water is the best sterilization method. However, microbial excreta in water, especially endotoxin released after pathogenic bacteria are killed, cannot be killed at 100℃, so turn off the fire after boiling water for 2 ~ 3 minutes.

2. When boiling water, when the water is close to 100℃, open the pot cover to let some volatile organic compounds remain in the water evaporate, and turn off the fire after boiling for 2 ~ 3 minutes. Of course, the longer the boiling water is boiled, the better, because the longer the boiling time is, the nonvolatile harmful substances and nitrite in the water will be concentrated because of the evaporation of water, and the content will be higher. Drinking such water is also harmful to your health.

3. Because of the secondary pollution of transmission and distribution pipelines and water storage tanks, the water stored in tap water pipelines for a long time should not be directly boiled for drinking. Turn on the tap in the morning, let the water flow for 5 ~ 10 minutes, and then boil it for drinking. Tap water can be used to clean floors or toilets. In addition, water can be naturally purified and precipitated in a container, and then boiled for drinking.

4, water can not be burned repeatedly, it is best to burn and drink now. Repeatedly boiled water is "thousands of boiling water", which is stagnant water. Drinking it will accelerate human aging. If water is stored for too long, it will be polluted by the outside world, and it will easily age overnight to form stagnant water.

(The above answers were published on 20 15- 10-26. Please refer to the current actual purchase policy. )

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