Review on Stainless Insulated Tumbler by Umite Chef by Fernando Hudson

Does not keep liquids hot as long as desired. Maybe open it up for a drink after an hour. May be. You lose a few grams because the lid is recessed when you put it on. So 14 to 18 ounces would be the best size if you want big cups. Well done, but I still use my giant Zojurushi travel mug at home because it keeps drinks hot much better (sometimes I drink slowly). A minor annoyance is that the lid's sliding mechanism leaves coffee underneath, which can lead to bacteria build-up if you don't rinse it off. As far as I can see it can't be removed to clean it, so every time I rinse it with water to rinse underneath. Hope this helps keep it clean. For my needs I'll probably choose a different brand simply because I need a larger size and after an hour of opening it for coffee it cools down to just warm temperatures. But it seems well done.