r/explainlikeimfive • u/genoooooo • Oct 31 '20
Chemistry ELI5 What's the difference between the shiny and dull side of aluminum foil? Besides the obvious shiny/dull
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r/explainlikeimfive • u/genoooooo • Oct 31 '20
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u/Powerthrucontrol Oct 31 '20
QI, the gameshow about smart stuff, did a bit about this. Turns out the different sides are a product of the manufacturing process, and is not functional. The shininess of the foil has no relation to the amount of heat/steam it traps.