Cool white water is the safest and most thirst-quenching water. It's best to drink it now, but it's better not to drink it overnight because it's full of bacteria. Some doctors suggest that overnight cool white water should not be used for more than 24 hours at most, and once this time limit is exceeded, it will be harmful to the body.

1, overnight cool water will produce bacteria

While cool water is very economical and affordable, and very safe to quench your thirst, but cool water also has a shelf life, and once the three hours later, the bacteria in the cool water will increase, which is harmful to our health. our health. Therefore, the best cool white water is now burning drink, fast pot is very convenient, a few minutes to boil water, do not be afraid of trouble, a time to burn too much boiling water, but on the contrary, our body is not good.

2, overnight cool white will produce excessive nitrite

Cool white placed too long will produce a large number of bacteria, will produce a large number of nitrites, once nitrites into our body, will make us produce dizziness, nausea, vomiting symptoms. We know that nitrite can be converted into ammonium nitrite, which can promote stomach cancer, liver cancer and so on. In the past, we have a lot of bad habits in life, on the stove at a time to boil a large pot of water, and then put in the thermos to keep warm, when you drink, pour out a little, do not drink it will always be placed in the thermos. This habit is unscientific, we need to correct, or day after day will jeopardize our health.

Many older people are very stubborn, think this life are so over, drink some overnight water is nothing, but this is a moment. Nowadays, environmental pollution, air pollution, water pollution, etc., has caused too much threat to our body, so, in order to be healthy, we are still scientific health, reasonable diet is good. Overnight cold white water should not drink again, for your health is responsible for it.