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Source: NBC News

Why is only 1 side of aluminum foil shiny?

Today 01:32 GMT

Mazza had an answer for us!.. "The difference in appearance between dull and shiny is due to the foil manufacturing process," he said. "In the final rolling step, two layers of foil are passed through the rolling mill at the same time.

Non-Stick foil actually has a protective coating on one side, so the company recommends only placing food on the side marked "non-stick" for maximum efficiency. If both sides of traditional foil can be used the same way, what's the reason for the difference in appearance?

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