the solution to this problem: firstly, drink as much water as possible, because it is good for your health, and it can also shorten the use time of bottled purified water after opening. Second, try to use the water flowing out of the hot water valve in the later period of use. Third, household users can choose to use bottled water in small packages, and of course, they have to use a small water dispenser with a smaller volume.
question 2: the bottled water in the water dispenser can last for a few days, and only two people can drink a little after work at night, but they can't finish drinking the bottled water in a week. Generally, the shelf life is marked as 3 months, but this is under the condition of unopened. If it is opened, it can be drunk for 15 days at most.
It is understood that if the bottled water in Kaifeng is left for more than half a month, although the taste has not changed, the bacteria have exceeded the standard.
The bottled water is highly purified during production and delivery, and generally the quality of the bottled water certified by QS can pass the standard. However, if the bottled water is opened for more than 15 days, the rapid proliferation of bacteria in the water will easily lead to diarrhea.
note: to prevent secondary pollution
secondary pollution of bottled water means that the water comes into contact with bacteria after opening, and these bacteria mainly come from hands, cups and drinking fountains. Hands should touch the seal of bottled water, and it is easy to leave bacteria on the mouth of the barrel; If the cup is not cleaned often, bacteria will remain; Drinking fountains are the easiest to breed bacteria, because the neck of bottled water is upside down on the drinking fountain, and all kinds of impurities and minerals in the water will precipitate into the inner container of the drinking fountain.
suggestion: if possible, besides drinking water, use bottled water when cooking, which will not waste and improve the quality of life. Add a glass of bottled water when washing your face, which is good for your skin. The skin also needs to be supplemented with trace elements. Drinking water is generally added with trace elements.
question 3: how long can I stop drinking pure water? Pure water takes tap water as raw material, and is treated by a complete set of hungry pure water machine equipment. Generally, ozone is filled when filling, and mineral water is also useful, so the taste is naturally good ... The principle of bottling is similar, bottled pure water can be kept unopened for 3 days, and unsealed for 1-15 days ...
Question 4: How long is the shelf life of bottled drinking water? Generally, the shelf life of bottled water is indicated as 3 months, but this is in the case of unopened. If it is opened, it can be drunk for 15 days at most.
It is understood that if the bottled water in Kaifeng is left for more than half a month, although the taste has not changed, the bacteria have exceeded the standard.
bottled water is highly purified during production and delivery. Generally, the quality of bottled water certified by QS can pass the standard. However, if the bottled water is opened for more than 15 days, the rapid proliferation of bacteria in the water will easily lead to diarrhea.
note: to prevent secondary pollution
secondary pollution of bottled water means that the water comes into contact with bacteria after opening, and these bacteria mainly come from hands, cups and drinking fountains. Hands should touch the seal of bottled water, and it is easy to leave bacteria on the mouth of the barrel; If the cup is not cleaned often, bacteria will remain; Drinking fountains are the easiest to breed bacteria, because the neck of bottled water is upside down on the drinking fountain, and all kinds of impurities and minerals in the water will precipitate into the inner container of the drinking fountain.
Some experts have tested that the colony index of the water in the drinking fountain was on the first day, and after 1 days, the total number of bacteria rose to 8 per milliliter, while the national standard stipulated 5 per milliliter. If the water in the inner container is stored for too long, it can also multiply and breed bacteria and viruses, precipitate residues, heavy metals and even red worms. If you drink such water, there will be problems in the digestive system and urinary system.
Disinfect drinking fountains every six months
According to experts, general household drinking fountains should be disinfected once after being used for about 6 months. Drinking fountains should be cleaned frequently when they are in use.
when cleaning, you can use the professional cleaning tablets equipped by the manufacturer of the water dispenser. First, put the tablets in the water dispenser filled with clear water, gently shake the water dispenser, let the clear water go for about 1 minutes, then put in about 2 kilograms of clear water, and clean it again. Finally, let the water in the water dispenser go completely.
Question 5: You can't drink boiled water for a long time, and the nitrogen-containing organic matter in it will be continuously decomposed into nitrite. Especially the boiled water stored for a long time will inevitably be contaminated by bacteria. At this time, the decomposition of nitrogen-containing organic matter will accelerate, and the formation of nitrite will be more. After drinking such water, nitrite will combine with hemoglobin, which will affect the oxygen transport function of blood. Therefore, in thermos flask, the composition of the residual water that has been boiled for many days and the water that has been left on the stove for a long time has changed and can't be drunk. You should drink boiled water for no more than 24 hours.
In addition, bottled and barreled pure water and mineral water should not be stored for too long. Bottles or barrels of pure water and mineral water should not be drunk for more than 3 days.
question 6: how long can the water in an unopened barrel last? Nominal: unopened shelf life is 3 months, and opened for 1 month. (It's 2 days cold and 1 days hot, to be exact) Quote it as soon as possible after opening. Nothing will be good if it is left for a long time.
Question 7: How long can pure water be stored? Before it is opened, there is a warranty period, which can be seen from the bottle body, usually 1 year, and the longest is 18 months.
However, after the bottle cap is opened, it is exchanged with the air. This kind of water is likely to cause bacteria to multiply beyond the standard. It is recommended that the boiled water be drunk within 3 days.
Question 8: Can bottled water be drunk after a long time? How many days is the shelf life? Under normal circumstances, bottled pure water is 15 days, which may be a little shorter after opening, but it can still be drunk as long as there is no green hair on the mouth of the barrel! If you don't feel very good after drinking it, mind if you don't drink it, and buy it for more than ten dollars. < P > Question 9: How long can pure water last after opening a bottle? Bottled and barreled purified water and mineral water should not be stored for too long. It is best not to store bottled or barreled purified water and mineral water for more than 3 days, but not more than 15 days at the longest.