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Bacteria: Rinse plastic water bottles before reusing
To stay healthy, everyone has to drink enough fluids every day. If you fill up plastic water bottles again, they should be rinsed beforehand. Otherwise, there are health risks due to bacteria.
Health risks from bacteria
Every person has to drink enough fluids every day to stay healthy. Opinions differ somewhat as to how much water we should drink. Most experts think it should be about 1.5 to three liters a day. The amount should be spread throughout the day and not drunk all at once. Many people often have water bottles with them anyway to quench their thirst. If you use disposable plastic bottles and refill them, you should definitely rinse them beforehand. Otherwise, there are health risks from bacteria.
Water from glass bottles is less polluted
Plastic bottles have long been criticized for environmental reasons. And they have a bad reputation for health, because according to experts, among other things, the estrogenic load in water from PET bottles is significantly higher than in water from glass bottles. Nevertheless, the proportion of plastic bottles on the German beverage market had recently risen again, according to environmentalists. People who use plastic water bottles often refill them in order to reduce the impact on the environment. But actually, disposable plastic bottles are not meant to be used multiple times. In an older article in the journal "Practical Gastroenterology", experts point out that the manufacturers of packaged water do not recommend that consumers reuse the disposable bottles.
Rinse plastic water bottles before reusing
The reason for this is that “daily wear and tear by repeated rinsing and reuse can attack the plastic, making it visibly thinner or cracking. Bacteria can nest in these cracks and pose a health risk. ”It is pointed out that the bottle should be washed out with a mild detergent, rinsed well - but not with very hot water - and excluded“ external damage before use ”. Reusable bottles can also be infected by bacteria if they are used multiple times. The authors write: "Bacteria that can nest in the cracks and scratches in the bottle appear to pose a greater health risk than the possibility of daily risks of chemicals leaking out of the plastic."
Bottles designed for single use
Cathy Ryan, professor of geosciences at the University of Calgary, has been involved in previous research on the subject. She told the Huffington Post that "bacteria grow when they have the right conditions," such as "backwash water" nutrients, moisture, and the right temperature. "Bottles that are not rinsed offer all of this," says the expert. Also reported is Scott Belcher, Ph.D., professor of pharmacology at the University of Cincinnati, who has studied the release of endocrine disruptor bisphenol A (BPA) in various types of water bottles. He explained that these bottles were “designed to be used [once] and then disposed of and not reused.” The scientist also said, “Of course, more chemicals are released from plastic through heat.” Belcher recommends glass bottles with a protective frame and as an alternative Stainless steel bottles. The Huffington Post said, "If you need to buy a plastic bottle, I recommend polypropylene bottles, which are usually made of white plastic." But they also need to be kept clean to keep bacteria out. This means that you have to rinse the bottles and let them dry before reusing them. (ad)