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The Pans That Have Been in Rotation Since the Aughts
According to Martha Stewart, nonstick cookie sheets—like all nonstick cookware—must eventually be replaced, because the coating wears off. And assessing your inventory could be a good reminder that there are items you just don't use. If you haven't used them in years and they're scratched, with the nonstick coating visibly coming off, then toss the pans and don't buy new ones until you need them; if you just put yours through their paces for yet another holiday-cookie marathon in December, it may be time for replacements.