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Jan 7, 2010 12:03 PM

Sweet Potatoes turning black

Does anyone know why sweet potatoes sometimes turn black when cooked? I've heard that it is the sugar carmelizing, but I don't think that's it. It looks like part of the potato is rotting.

thanks for your help!

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  1. Cooking them in aluminum cookware or storing them in an environment that is too cold can sometimes turn them black. I agree. The black you describe is unlikely to have anything to do with carmelization of the natural sugars in the tuber.