bottled water is not safe. If the water dispenser is not disinfected regularly, bacteria and viruses will breed. When changing the bottled water on weekdays, bubbles can be seen popping up. At this time, most bacteria in the air dissolve into the water and multiply rapidly in the water.
there is also a common problem of "boiling water" in bottled water. If the bottled water is heated repeatedly in the drinking machine, it will form "boiling water", which looks clean, but it is actually a concentrated solution of harmful substances such as heavy metals and arsenic compounds.
The so-called boiling water is water that has been boiling for a night or a long time, and water that has been boiled repeatedly in electric water heaters. Because this kind of water is boiled for a long time, the content of nonvolatile substances such as heavy metals such as calcium and copper and nitrite in the water is high. Drinking this water for a long time, the substances in the water will interfere with people's gastrointestinal function, resulting in temporary diarrhea and bloating.
what should I pay attention to when purchasing bottled water?
1. When ordering bottled water, you should choose a sales point with complete licenses and good sanitary conditions. If you buy a brand of water for a long time or in large quantities, you should check with the manufacturer to see if it is the authorized sales point of the manufacturer.
2. Pay attention to the quality of bottled water. To buy bottled water with complete food hygiene license and inspection certificate. In addition, it can also be distinguished from the perception that high-quality pure water is clean, colorless and transparent, without suspended matter and sediment, sticky and odorless. ?
3. Consumers should carefully identify the sealing of bottled water. The heat-shrinkable film of inferior water seal is generally thin, with no gloss, uneven folds and relatively loose, while the real water is the opposite; The real bucket cover has a circle of arc indentation tear, which is easy to be torn along the line, while the fake bucket cover is dark, which is difficult to tear or not at all.
what are the above references? People's Daily Online-Keep in mind five notes when purchasing bottled water
Reference to the above contents? Baidu encyclopedia-barreled water