Lemons can remove tough food stains from plastics and wood cutting boards. Tried it and it works. Add table salt and it really gets the tough stains.
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Really?! Might have to try! (Vinegar works as a wood stain when you add a metal object in the mix and let it sit in a glass container for a week. A handful of pennies will produce a beautiful pale Caribbean blue stain. A wad of steel wool will give you a rich reddish hue. A combination of tea and a metal object in vinegar will produce a black stain.)
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