Handwarmers?

Question

what is the best brand of handwarmers? where do you get them. Will they keep hot liquid warm if strapped outside a plastic bottle, and for how long?

Answer 1

waste of time/money

Answer 2

Jon-E is the best. The large size. No they will not keep a beverage hot. There is too much air exposed on the mouth of any cup to allow a heat source from the side to warm it up. I learned this the hard way about 30 years ago when I went camping in April with a blow torch for heating water-Doesn't work! Thank God I didn't mind cold food that weekend!