Hello everyone, thank you for the invitation. Today I would like to share with you the problem of not drinking tap water for 20 years, and some confusion about the shelf life of tap water. If you still don’t understand it well , it doesn’t matter, because I will share it with you next, I hope it can help everyone and solve everyone’s problems, let’s get started!
Contents of this article
- Can tap water that has been left out for half a month still be used?
- How long does it take to drink tap water?
- Is it better to use tap water or a deep well for a long time? Is the water good
- How long is the shelf life of tap water
- Put the tap water for more than one Can I still drink it during the week?
- Why can’t I drink tap water in Shenzhen?
1. Can tap water that has been stored for half a month still be used?
It is not recommended for consumption. Even if tap water looks clear and transparent after being stored in a bucket for a month, there may be bacteria, viruses and other harmful substances in it. Long-term storage will cause the water quality to deteriorate and become unfit for consumption. It is recommended to use fresh tap water or filtered and sterilized water for drinking.
2. How long can tap water be left for drinking?
Water cannot be left for a long time If it is too long, you cannot drink it for more than 24 hours. Because when the water is left for too long, the nitrite content in the water will be particularly high, and it will rise a lot if the time is longer. Moreover, boiled water left for too long will also be contaminated by air bacteria, and it is not suitable to drink it at this time.
The nitrite content in boiled water is higher than that in raw water. After boiling the water for 3-5 minutes, the nitrite and chloride content in the water is the lowest. But when the water was left for 24 hours, the nitrite content in the water was 1.3 times that of boiled water. It will rise if it takes longer, so it is not easy to leave it for too long. In addition, water that has been left for a long time will also be contaminated by bacteria in the air. Especially when the temperature exceeds 30°C, the air humidity is high and bacteria multiply quickly. Boiled water that has lost biological activity overnight will be easily contaminated, so you should be careful to cover it with a lid when placing water.
3. Is it better to use tap water or deep well water for a long time?
1. It is better to drink tap water than deep well water for a long time.
2. Because the tap water has passed the factory inspection and has reached the national drinking water standards, it can be drunk with confidence for a long time without being contaminated by other pollution. There is no problem. However, some deep well water contains elements that are harmful to the human body, such as fluorine. The groundwater content in Cangzhou, Hebei Province is very high. Long-term drinking will have irreversible effects on human bones.
4. How long is the shelf life of tap water
1. Tap water should be stored in a bucket. It is recommended that the shelf life of tap water should not exceed 2 days. If it is used as an emergency when the water is cut off, it is recommended not to drink it.
2. Tap water also has a shelf life, but this shelf life is not what we usually expect. The shelf life of tap water is that it contains residual chlorine. The function of this substance in the water is to sterilize it. However, if this substance exists in the water for too long, it will cause an increase in harmful substances in the water, and the water will expire.
5. Can tap water still be drunk if it has been left out for more than a week?
1. According to tap water The owner of the factory said that tap water should not be drunk if it has been stored for more than a week.
2. Because tap water may produce a large number of microorganisms and impurities if stored for more than a week, it cannot be used. Drink; otherwise it will affect your health
6. Why you can’t drink tap water in Shenzhen
You are not allowed to drink tap water in Shenzhen because the tap water source is transported from the purification plant after treatment. If you drink the raw water directly, there may be parasites, so the tap water needs to be thoroughly boiled before drinking.
This is the end of the introduction about the shelf life of tap water after 20 years. I wonder if you found the information you need? If you want to know more? For information in this regard, remember to bookmark and follow this site.
