If you boil the Warmilu US-patented InstaWarmer pack to reset it, the time for reset depends on the elevation!
- Boil enough water to cover pack in a large pot (a sufuria).
- Fold the InstaWarmer(s) pack in half.
- Place InstaWarmer(s) in pot and boil for 20-40 minutes. If you are at a higher elevation, you will have to boil the pack for a longer period of time.
- Allow InstaWarmer(s) to cool to room temperature on a flat surface.
- Pack is ready now for use, simply press the disk anytime between now and 2 years when you need warmth. This cycle can be repeated 100 times.