SINGAPORE – Owning a reusable water bottle helps you stay hydrated as it is convenient to carry around. It also cuts down on single-use plastic. But how often do you need to wash it to make sure you are not gulping down possibly harmful bacteria as well?
On average, a reusable water bottle contains 20.8 million colony-forming units of bacteria, which is more than 40,000 times that of a toilet seat with 515 colony-forming units. Colony-forming units refer to the number of living microbes on a surface. Microbes are microscopic organisms that include bacteria, viruses and fungi.
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