Dishwashers won’t clean these gaskets if they’re washed while installed. Oh, and those silicone straws can come out of the dishwasher nasty too.
Seems you should also know that dishwashers only work so well as the detergent and water can access the objects inside. They are not a magic device that clean everything without fail.
I handwash silicone straws because I know no amount of automatic dishwashing will clean it.
How do you clean them, pipe cleaner?
Every water botulism I’ve bought that had a fancy straw came with a pipe cleaner and I’m leaving that autocorrect
From my experience, most canteens they sell are marked as not dishwasher safe.
“Not Dishwasher Safe” == “We didn’t want to spend the money testing it and want to free ourselves from liability”
Sometimes it’s true, sometimes not
A couple of things come to mind here:
I own a metal one which I assume was dishwasher safe but somehow water got trapped inside the ‘extra’ parts of it which could be unsanitary due to the water eventually stagnating.
Another is that the heat from the dishwasher can warp and silicone or plastic parts which will render them unusable eventually.
Not saying you’re wrong but this is what I consider from the warning they provide.