I take a 2 hour commute to school every day. My Stanley thermos, which was gifted to me by my very consumerist aunt, doesn’t keep my moka pot coffee hot for 2 hours.
Although it is a pretty good thermos it seems to be leaking a lot of heat from the metal section near the cap.
Is there any thermos that has every section of it isolated? Like, I shouldn’t even be able to tell if there is a hot liquid inside
The metal portion should not be radiating heat. Implies there’s something not quite right with the vacuum seal. If it’s new, you might try returning it & asking for a replacement. If it’s only mildly warm, that might be normal - have you considered getting a knit hat to place over that area to further insulate it (yes, I’m too cheap sometimes).
FWIW, I’ve had great luck with my Stanley thermos for doing exactly what you’re doing, keeping coffee hot for hours. I also like Zojrushi’s products - I have a smaller one I use to keep my creamer cold.
Well the body of the thermos does not radiate any heat.
It is the section near the cap. That section is just single layer metal which leaks a shit load of heat