OK, DD has one of those 1/2 gallon Coleman thermoses she takes everywhere. She's had it for a couple of years and it's looking pretty, uh, gross. Can't put it in the dishwasher, but we've been unable to find any way to get it really clean. Have scrubbed it, soaked it, etc..., but it still looks really sketchy. Anyone got any hacks to clean it? Don't want to buy a new one, but it's just nasty to look at.
Similar to this, but purple:
https://jet.com/product/detail/6066...d=403-802398&gclid=CNGIot3AscoCFYU2gQodjRQFQA
Similar to this, but purple:
https://jet.com/product/detail/6066...d=403-802398&gclid=CNGIot3AscoCFYU2gQodjRQFQA