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Title: Everything burns on these cookie sheets!
Review: I received two of these cookie sheets as a gift and was excited because I have many other Calphalon Commercial products and love them. I would not recomment these cookie sheets. Everything I bake on them burns on the bottom! I've tried adjusting the baking times, and moving the oven racks and nothing works. If I bake something long enough for it to be cooked through, the bottom get black.
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