The carafes used in most hospitals are cheap, graduated, and light, being meant to be disposable. Most are very large (32 floz) but here’s a smaller one.

It’s also a great size to find a compatible alcohol fuel bottle to carry inside it for longer trips, so it really isn’t much of a loss of pack volume. The graduations are nice to measure water when cooking. I prefer plastic because hot drinks in metal mugs can burn your lips. The one I link to isn’t insulated, but many are- it’s just hard to find an insulated one that’s this small. Of course when you’re buying something that costs a buck and a half it’s the shipping that gets you. You’d have to either stock up or band together for a group order to keep costs reasonable. They’re available on Amazon but heavily marked up for some reason.
I’ll try to get my hands on one and review it. (My hospital uses massive 32 floz insulated carafes, so I can’t just acquire one.)
Another option, of course, is just a cheap plastic measuring cup or beaker.



