ElI5: Aluminum foil one side shiny other side dull

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Why is one side shiny and other side dull? Does it have a coating or something?

Which side should be used to touch the food? And which side should be outside ?

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3 Answers

Anonymous 0 Comments

Most of the time it makes zero difference.

Reynolds Wrap does have a specific product seperate from their normal foil and heavy duty foil. It is labeled “nonstick foil” and had a nonstick silicone coating applied to one side making it look dull.

So unless you paid extra for the nonstick coating, it won’t make a difference. If you did pay extra for the non stick coating, you use the dull coated side.

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