How dirty are plastic water bottles?

Nghiên cứu mới cho thấy chai nhựa được tái sử dụng để đựng nước chứa trung bình 300.000 đơn vị vi khuẩn trên một cm vuông, bẩn hơn bát dành cho chó ăn.

"Uống nước từ chai nhựa tái sử dụng còn bẩn hơn ăn cơm từ bát dành cho thú cưng của bạn", trang Treadmill Reviews cho biết.

Ảnh: Metro.

According to the Telegraph, the above conclusion was made after the research team of the Treadmill Reviews website tested 12 types of plastic water bottles used by athletes. After a week of use without washing, the plastic bottles contained an average of 313,499 bacteria per square centimeter. The dirtiest sample had up to 900,000 bacteria per square centimeter, more than a toilet bowl, and 60% of these can be harmful to human health.

Experts explain that not washing is the main reason why plastic bottles are unhygienic. In addition, sweat and germs you come into contact with every day can also dirty plastic bottles. To improve this situation, you should wash the bottle daily or switch to using a stainless steel water bottle.

According to VNE