That is, until recently.

Concentrate on any areas with visible stains or grime.

Spritz hydrogen peroxide onto the baking soda until covered.

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Repeat steps 1 and 2.

Top with more baking soda, and spritz again with hydrogen peroxide.

Let the mixture sit for at least 4 hours and up to overnight.

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This mixture needs time to work.

Use a scrubber sponge to remove the baking soda mixture.

Rub with some elbow grease to remove any stains as you go.

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You may need to dip the sponge in water to loosen up the dried baking soda.

The process may take a few minutes, so don’t get discouraged.

Once most of the stains have been removed, rinse the baking sheet thoroughly.

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Buff out stubborn stains with extra fine steel wool.

Very fine or extra-fine steel wool is gentle enough to lift stains without compromising the metal surface underneath.

Wash then rinse the baking sheet thoroughly before using.

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