Why Do You Hear Your Oven Pan Pop?

Place a sheet pan in your oven and you might soon hear a reverberating “PONG!” that makes you jump a mile out of your shoes. Before you open the oven door to check for casualties, it helps to know a little of the physics behind that sound: This is the metal warping, or twisting slightly as it expands and contracts.

https://www.allrecipes.com/author/hannah-klinger/

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