KosmicTom t1_irev5j4 wrote on October 7, 2022 at 3:15 PM

Expecting a thermos to keep water hot for 3 days seems absurd to me.

Loobeensky OP t1_irey2t2 wrote on October 7, 2022 at 3:37 PM

Hey, don't look at me, look at their page: "This bottle can hold an entire pot of coffee—or whatever else you may be drinking—keeping it hot or cold for up to 45 hours."

So I assume there must be some circumstances when it's possible.

[deleted] t1_irf4b3n wrote on October 7, 2022 at 4:23 PM

Idk man, 45 hours is barely 2 days, not 3.

Loobeensky OP t1_irf7g25 wrote on October 7, 2022 at 4:46 PM

Yeah, my mistake and ~2 days would be enough but it doesn't even deliver this, probably because of the reasons stated in other comments.

KosmicTom t1_irf6w8o wrote on October 7, 2022 at 4:43 PM

>an entire pot of coffee—or whatever else you may be drinking

Yeah, that's when it's full. Not opening it up constantly and draining part of the contents.

It's full of 100 C water, then you open it and pour some out, what do you think is the temp of all that air you just let in?

And "up to 45 hours" is a far cry from the 72 you want.

Loobeensky OP t1_irf7p6r wrote on October 7, 2022 at 4:48 PM

Yeah, my mistake, was supposed to be 2 days, don't ask me how I went from 45h to 3 days :D Still, 28h is a bit of a bummer but at least I know why it's happening.