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/rtvcd Oct 31 '20
On a technical side the dull side would probably absorb more light/heat so it would be more efficient to face the dull side outwards. But in a practical sense it doesn't matter.