For a drip machine, I have a Mr. Coffee that uses a stainless steel carafe that uses its thermal properties to keep the coffee hot. I find that I prefer that over the more typical glass carafes anyway for multiple reasons. Two include that there is no chance of breaking the carafe and also I think coffee continuously heated by the glass machines develops a kind of nasty burnt flavor, which is making the already bad drip coffee taste even worse.
Ultimately the steel carafe only keeps the coffee hot for about 3 hours after brewing but for something with zero heat applied after brewing it's not bad, and the flavor stays decent.
I guess one downside of the steel carafe is that if you have coffee older than that there's no way to turn the heater on to warm it back up, but I just pop it into the microwave if that's the case.
Ultimately the steel carafe only keeps the coffee hot for about 3 hours after brewing but for something with zero heat applied after brewing it's not bad, and the flavor stays decent.
I guess one downside of the steel carafe is that if you have coffee older than that there's no way to turn the heater on to warm it back up, but I just pop it into the microwave if that's the case.