Introduction: Mini Heater

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Regular laundry detergent will probably work better that dish washer detergent. I recommend laundry detergent crystals.

Step 1: Get Some Water

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Step 2: Get a Bag

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Step 3: Mix Only Use a Little But of Water

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Mix the substances and your bag will start to get warm. It won't be much but it is still pretty cool.


jkimball (author)2015-08-28

I didn't believe you, but I looked it up and you are right.

One of the ingredients in detergent is Sodium Carbonate, which has an exothermic reaction with water- meaning that, yup, it heats up when wet.

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