Thought you might have some good insight on which thermos/vacuum bottles are the best for winter backpacking. I am looking for performance (length of heat retention) and then weight saving. Most reviews I have found say that they only keep fluids hot for 2-3 hours. Have you had any experience with a bottle lasting longer? Please let me know, it would be greatly appreciated.
Thank you for your time, Owen
We have experimented with thermos/vacuum bottles. Not testing various brands – we have no special insights there – but on their use for winter camping.
Filled with hot water the night prior and given some protection (in a tent or, better yet, within your sleeping bag, they will render nearly hot coffee the next morning. That plus a granola bar or two is usually enough to get moving in the morning. Your body can only absorb about 400 calories of food an hour, so it really doesn’t matter how much food you consume for breakfast once your have consumed an initial meal.
Depending on the type of winter camping trip you are taking it may not be desirable to hang around in the morning and cook breakfast. A vacuum bottle of coffee and a quick bite enables one to pack up and move out.
I would be interested in the experiences of others with vacuum bottles overnight.