I'm thinking I'd like to get a bottle in the ~20 oz./600ml range that would serve as:
1. My mug, for brewing/sipping coffee/tea. (I use an MSR Mugmate coffee filter; so the lid of the bottle should be neither too small, nor too big, for the coffee filter.)
2. I'd like to put boiling water in it at night, to put in between my feet. Therefore, it needs to have a bombproof, secure, leakproof lid.
(3. Its third purpose would be to increase my water-carrying capacity during the daytime, should I ever need to.)
I've actually found some bottles that look like they might work…but am confused about
(a) What material I should go for: BPA-free plastic? Stainless steel? Aluminum? Titanium? How do they hold up to boiling water?
(b) How insulated the bottle should be.
More insulation usually = higher weight. So one option would be to get a lighter bottle and fit it with a one-ounce cozy (or use a sock).
Anyone using a bottle for both purposes?
Elizabeth
