Reusable water bottles are beneficial in many ways, but experts have warned that they can contain an average of 20.8m colony-forming units of bacteria, 40,000 times more than the microbes on a toilet seat Reusable water bottles are beneficial in many ways, but experts have warned that they can contain an average of 20.8m colony-forming units of bacteria, 40,000 times more than the microbes on a toilet seat Lifestyle
Warnings over what happens if you don’t wash your water bottle often enough
