How Often Should Water Bottles Be Cleaned?

Both Stapf and Hutchings recommended washing your water bottle once a day. As far as sanitizing goes, experts recommend this at least once a week, but you can do it more often if you've been sick or you've taken your bottle outside.

What happens if you don't wash your water bottle?

So it's not shocking that reusable water bottles, left unwashed, can become a breeding ground for bacteria and a safe haven for poop particles. Whether plastic or metal, screw top or squeeze, bottles that go days between cleanings can leave us gulping down germs with every drink.

Do you have to wash your water bottle every day?

How to keep your water bottle clean. All the experts agree that you should wash your water once a day everyday to keep your bottle relatively clean.