• Passerby6497@lemmy.world
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    13 hours ago

    Aluminum foil that’s food grade will have coatings on it to assist with food release. I assume that’s part of why one side is more shiny than the other.

    • Krudler@lemmy.world
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      5 hours ago

      I have always understood the rough side to simply be an outcome of the rolling process.

      If I’m wrong I’d love to know!

      edit: I looked it up, yeah that’s the reason one side is shinier… the rolling process, nothing else