Make Hot Ice Hand Warmers!

Keep your hands warm with this hot ice experiment you can do at home! It’s not really ice, but it really does keep your hands warm!

Important Note: Prior to using any of the products mentioned, it is highly recommended to thoroughly read and understand all safety precautions associated with each product. It is also strongly advised to perform a patch test before proceeding with usage.

Please be advised that this guide is intended for informational purposes only and APC Pure cannot accept any responsibility for the outcome of any usage based on this guide.

Here are the materials you'll need:

Sodium Hydrogen Carbonate
Acetic Acid 6%
Measuring cups
Ziplock bags
Cooking pot (do not use Copper)
Heat safe container
Jar

Step 1: Pour 3 cups of Acetic Acid 6% into the pot. Slowly add 3 tbsp of Sodium Hydrogen Carbonate into the mixture. Add a small amount at a time (Larger scoops will cause the mixture to bubble out of the pot).

Step 2: Be careful, this step can get slightly smelly, make sure you work in a well ventilated area.

Place the pot over the stove and boil on a medium heat for about 30-60 minutes. As the liquid reduces you’ll start to see white crystals form on the walls of the pan.

Once the liquid has reduced down to about 25% of the initial amount, look out for a thin layer of film over the surface. Once you see the film, turn off the heat.

Transfer the liquid to a clean jar, leaving the crystals behind.

Your solution will probably be a light yellow colour!

Step 3: When the pot has cooled down, taking caution scrape the crystals off the walls and place into a ziploc bag. You want just the dry crystals, not the solution.

Step 4: Check on your jar of hot ice solution. While it’s still warm, pour it out into a second ziploc bag. We advise you double bag to prevent leaks.

Step 5: Place the hot ice solution into the freezer for 10-15 minutes. Once the bag is chilled, you’re ready to use your hand warmer.

To activate the hot ice, carefully open the baggie with the solution and drop in a small pinch of crystals from when you scraped them off the pot. There you have it your own instant hand warmer

Your hot ice hand warmer can be reused. To do this – heat up the mixture again. Once it becomes a liquid, pop in the freezer for a few minutes and it’ll be ready to use again.