Quote Originally Posted by Pedal Wench View Post
I had no idea!!! That's brilliant! I wonder if foil until they've cooled enough, then another layer of plastic to keep it airtight. I've hesitated using them on shorter rides because I didn't want to waste them. (Although, I've been known to keep them stuck on my toes for the drive home. And an few hours after that...) This is probably the best tip of the day!
Glad the tip was useful! I'm sure I picked it up here on TE last winter when I was desperate for ways to keep my digits warm! :-) And, yes, I DO often stick the foil-wrapped packs into a plastic bag or a small tin with a tight lid. (I should have said that in my first post.) The key is to store them in something air-tight as soon as possible.

Also, if I'm at all dubious about whether I can really get a full second ride out of a pair, I'll use them for walking my dog. (Hour or less.) That way, if the packs don't have a lot of oomph left in them, I'm not stuck part way through a long ride with cold fingers.....