I either drink it all or I dump it and put fresh water in. What are the risks if I don’t wash it? It’s just me drinking out of it. I’m talking days and days like why ever wash it if it’s just me?
Edit: Clarified the amount of time without washing
Btw a good way to clean your water bottles, especially with a narrow mouth (that you cant easily clean with brush), is to put water and tablet meant to wash contact lenses/dentures. The one that releases CO2 and changes color blue to red once done.
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