Reusable water bottles are beneficial in so many ways - helping keep you hydrated, they also cut down on single-use plastic, and save you money every time you refill instead of buying a new bottle of water.
Plus, with all the chic stainless steel flasks and glass bottles on the market – not to mention sporty carrying straps – they’ve become something of a fashion accessory.
Trying to hit the NHS-recommended eight glasses of water a day for adults is an excellent idea, of course, but there’s one way your refillable bottle could potentially be detrimental to your health.
According to a study from waterfilterguru.com, reusable water bottles contain an average of 20.8m colony-forming units (CFUs) of bacteria, which equates to 40,000 times more than the microbes on a toilet seat.
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