You can reuse our InstaWarmer Pack by boiling or autoclave or microwave!

We designed a non-electric, clinically validated warming pack that generates safe, hours long-lasting warming pack to meet your specific needs!

Reset our Warming Pack (the InstaWarmer) over 100 times by boiling!

Boiling time is dependent on your elevation.

Boiling Instructions

If you boil the Warmilu US-patented InstaWarmer pack to reset it, the time for reset depends on the elevation!

  1. Boil enough water to cover pack in a large pot (a sufuria).
  2. Fold the InstaWarmer(s) pack in half.
  3. 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.
  4. Allow InstaWarmer(s) to cool to room temperature on a flat surface.
  5. 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.

Reset our Warming Pack (the InstaWarmer) over 100 times by autoclave!

Autoclave Instructions

The Warmilu InstaWarmer pack can be reset and sterilized in a standard hospital autoclave cycle. The time for reset depends on the autoclave and your hospital/laboratory’s standard autoclave procedures!

  1. Wipe InstaWarmer clean with alcohol wipes, or other sanitizing solution.
  2. Wrap InstaWarmer in a standard sterilization pouch or autoclave wrap.
  3. Set for your hospital/laboratory’s standard autoclave procedure. We recommend using a gravity cycle at 121ºC for at least 15 minutes, with a 15 minute dry time. For higher elevations (3,500 ft. or higher) in Kampala Uganda or Kenya, do not autoclave at 134ºC for at least 45-50 minutes to reset. It can cause the pack to rupture.
  4. Remove from autoclave. Allow InstaWarmer(s) to cool to room temperature on a flat surface.
  5. 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.

Reset our Warming Pack (the InstaWarmer) over 100 times by microwave!

Microwave Instructions

The Warmilu InstaWarmer pack can be reset by microwave. The time for reset depends on the microwave’s wattage.

  1. Wipe InstaWarmer clean.
  2. Find and use a microwave-safe bowl made from stoneware, porcelain, glass, silicone, and microwave-safe plastic. DO NOT use a metal or paper bowl.
  3. Roll the pack into thirds and place into a microwavable bowl filled with the middle with water. Make sure the part of the pack with the disk is BELOW (UNDER) the water. ALWAYS reset the pack with the disk BELOW (UNDER) the waterline.
  4. Set the timer to the Phase I time below on HIGH power based on the wattage of your microwave. If you do not know what power setting you have on your microwave, try 7.5 minutes to start.
Power (WATTS) 600 Watts 1100 Watts
Phase I 15 minutes 7.5 minutes
Phase II 15 minutes 7.5 minutes

5. After Phase I in the microwave, carefully, take the hot pack out from the bowl. Shake the pack back and forth vigorously to mix solid chunks. Place the pack back into the bowl, with the disk under the water. Set time for the remaining Phase II. If the pack has not been successfully melted to a full liquid, keep microwaving for additional 1-minute increments until fully melted.

At this phase, everything in the pack will be liquid.

6. Let the pack sit on a table for 45 minutes or until it hits room temperature. The pack will have a gel-like interior with a jelly and clear liquid. Now, your pack is ready to activate!

New reset ideas headed your way – come back later for our reset videos!

You are able to reset the Warmilu US-patented InstaWarmer pack over 100 times by boiling or autoclave or microwave! We aim to cover the widest possible range of the Health & Medical applications by offering carefully engineered and rugged packs that meet your specific needs. Check out our reset instructions below to use your Warmilu packs!

But Warmilu Team! I have more questions about resetting my InstaWarmer pack…

Send your questions our way by contacting us at info@warmilu.com!