• These warmers cannot be reused.
    Answered on 1/31/2011 12:00:00 AM by Customer Care from Sierra Trading Post
  • Grabber actually sells a new version with a little ziploc bag for this purpose. Works only so-so.||The heat is produced through oxidation of the contents so when you seal them up and exclude oxygen you can slow down and stop the process. When you reopen the bag, the process continues. Unfortunately ziploc bags are not necessarily air tight so sometimes a second use will not work well, especially if they have been sitting for a while because oxygen slowly leaked in.
    Answered on 2/29/2012 12:00:00 AM by batmick from San Diego, CA