Why is aluminum foil only shiny on one side?


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Most Helpful Girl

  • The difference in appearance between dull and shiny is due to the foil manufacturing process, in the final rolling step, two layers of foil are passed through the rolling mill at the same time. The side coming in contact with the mill's highly polished steel rollers becomes shiny. The other side, not coming in contact with the heavy rollers, comes out with a dull or matte finish.

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    • Wow some people actually know the answer to this. 😅

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What Girls Said 2

  • The other side prefers being matte

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  • Google...

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What Guys Said 3

  • It's manufactured this way. Can be manufactured in another way too.

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  • Both Side shiny normally, just mind game.

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  • So it reflects light, keeps things cooler

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    • Oh ONLY one side you said' that's because it is cheaper to only make one side shiny. Naturally found aluminum isn't shiny.

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