My wife and I are taking a hike next week and after the temps today have decided we would like to make tea in the mornings and keep it warm for a good while instead of cold water. Thermos is to heavy but seams to me I have seen a warmer for nalgenes somewhere. Am I crazy ( dont answer that ) . Has anyone seen such an animal and if so where?
Huff&Puff
I carry hot water on backcountry ski trips by filling a nalgene and wrapping it loosely in the down vest I always carry for survival mode but never wear, and putting any extra clothing around it. I also put my lunch in there, and will enjoy a warm sandwich or leftover pizza with my warm water. It doesn’t stay piping hot for more than a couple hours, but it’s still warm at the end of a six hour trip in zero F weather, and that can help make the day better.
Garlic
I think this is what you’re talking about. Never used one though.
http://www.outdoorresearch.com/site/water_bottle_parka.html
Captain K-man