Top critical review
The problem is the smell the flask gathers is very hard to get rid off
3 September 2017
It's good as a use and throw product.
Made coffee for the first time and poured it in it was warm for over 6 hours.
Anything you put in there be it cold water, cold juice stays cold for over 12 hours or hot tea, coffee stays hot for over 6 hours no problems.
The problem is the smell the flask gathers is very hard to get rid off. I brought this because I'm a heavy drinker -coffee :-)
But no matter how you wash it, I tried vinegar, salted water fairy liquid cleaned thoroughly with the brush the smell is embedded into the flask and doesn't go making coffee and tea smell like old granny's house.