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Why You Should Never Microwave Disposable Hand Warmers To Reuse Them

Though 18 hours is a long time, you might find yourself pressing up on that time limit and still be in need of something to warm your hands. What then? Some people might think the natural step would be to microwave their disposable hand warmers to give them a kick. However, this is very dangerous. Because disposable hand warmers contain chemicals, heating them up in the microwave can actually trigger an explosion, according to Question and Answer. This means you should never microwave disposable hand warmers.

However, there are other strategies you can adopt to make sure you're getting the most out of your hand warmers. For example, if you're finding you only need your hand warmers for a few hours at a time, you can actually pause the chemical heating process so that you can reuse the warmer on another day, according to Hot Hands. Simply put the warmer into an airtight container or bag. The lack of fresh oxygen will halt the oxidation process, and the warmer will cool off. Then, when you're ready to use it again, simply take out the warmer and expose it to air, and it'll begin to heat up once more.

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Carisa Kissane

Update: 2024-05-18