Originally Posted by
Gresp15C
The tradition of BF is for the first response to completely not answer the question at all, but go off on a different tangent.
With that said, when I was a kid and my family went on long hikes, some folks would wrap their canteen in a canvas bag, and soak the bag. The evaporation was supposed to keep the contents of the canteen cool. Don't know if that would be a partial solution or not.
Ok this must win the "Comment of the Day" prize!
I have just put my bottles in the freezer, will see how that works tomorrow. My dream continues to be that I find a 750ml (24oz) vacuum insulated bottle with a nipple/fast cap, that fits in the hold. Will post here if I find something interesting. Thermos has a promising product but it's out of stock. Oh well, the quest continues.
Thank you ALL for the funny and meaningful answers.