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What is the shelf life of bottled water? How many days can the bottled water last after opening?

Nowadays, people's living standards have improved. Every household will drink bottled water with a water dispenser. They think it's clean and sanitary. But do you know how many days can bottled water last? How long is the shelf life of bottled water after it's opened? If it's too long, don't drink it.

The shelf life of bottled purified water sold on the market is generally 3 months without opening, and there are a few pure water with a shelf life of only one month, so it's easy for large-capacity bottled purified water to expire. Bottled purified water generally has a shelf life of 1-2 years.

Shelf life of bottled water after opening

The barreled water is polluted by bacteria after it is opened. These bacteria mainly come from hands, cups, drinking fountains, etc. If you touch the seal of the bottled water with your hands, it's easy to leave bacteria on the barrel mouth; if you don't clean the cup often, it's easy to leave bacteria; the water dispenser is the place where bacteria are most likely to grow, because the impurities and minerals in the bottled water will settle in the inner tank of the water dispenser, which will seriously affect the quality of drinking water for a long time.

The shelf life of the bottled water is only 15 days at most, and the best drinking time is 5-7 days. If the bottled water in Kaifeng is kept for more than half a month, although there is no change in the taste, the bacteria have exceeded the standard. So we should not drink bottled water for too long. If you haven't finished drinking for more than 15 days, don't drink the rest of the water. Do other treatment and don't waste it.

Other water shelf life

Shelf life of boiled water: only about 1 day. One day refers to the water filled in the hot water bottle. It's only about 16 hours.

Warranty period of purified water: generally, the purified water does not contain bacteria when it is sealed, but the second unsealing will cause pollution to the purified water, so if the purified water exceeds 5 days, it is better to drink it after heating.

Shelf life of mineral water: the shelf life of unsealed mineral water is about one year, but only about five days after unsealing. However, due to the large amount of minerals in the mineral water, it can not be heated, otherwise it will cause mineral precipitation and lose its health effect. Therefore, mineral water is not suitable for drinking more than 5 days after its opening.

Shelf life of magnetized water: the magnetized water is artificial magnetized water and natural magnetized water. Generally, the artificial magnetized water is treated by a magnetizer, and the water has weak magnetism. The shelf life of this kind of water is no different from that of pure water.