[c00lio]

Water bottles, if not cleaned properly with a soap and brush on the inside, will be coated with a bacterial "lawn". Copper prevents that. Lots of bacteria need such a lawn to propagate, only some can multiply without a substrate. So even if the "free" water part won't be desinfected, copper has an overall positive effect on the bacterial content of your drinking water.

[thorncorona]

As someone who washes my (steel) water bottle at most 1x a week, and drinks ~10-14L of water a week, I've never gotten sick from drinking out of my bottle before.

You can usually tell if the water in your bottle is going bad / filled w bacteria..

[kelipso]

Same, except I wash it like once in a blue moon lol.

[kitkat_new]

I have to at least rub the area where I drink otherwise it will smell within less 2 days

[kelipso]

I don't usually touch the bottle with my mouth, so I guess that allows for a bit more leeway.

[voxelghost]

Do you hesitate to drink water from a normal glass or cup as well?

[c00lio]

No. I was just explaining why copper is better in that regard, not that I would personally care that much. I do prefer stainless steel, because it is more robust, dishwasher-safe and cheaper.

[FalconSensei]

normal glass goes into dishwasher after every use. Those water bottles are more of a hassle to clean properly