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Why doesn't popcorn pop if pierced?

Updated: 11/11/2022
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14y ago

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Popcorn pops because of the moisture trapped inside. When that moisture heats up, the molecules move apart. When there's no more room, the kernels burst open (which lets the steam out, so the popcorn isn't soggy. So, if you pierce the kernels, you're letting the moisture out instead of causing it to expand within the trapped space. (Dried out kernels don't pop.)

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14y ago
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Q: Why doesn't popcorn pop if pierced?
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