Originally Posted by
modernjess
I heard a tip the other day, After the ride in, take the chemical warmers and put them in a ziplock bag, the lack of air sort of stops them from working, then pull them out at end of the day, they'll warm up again for the ride home. I haven't tried it yet.
it totally works. i did it all last winter, typically getting 3 days use (6 rides) out of a single pack of chemical warmers.
the chemical reaction that makes chemical warmers "warm" needs air to take place, so deprive them of fresh air, and the chemical reaction ceases. give 'em new fresh air and the reaction starts back up again.