GrandmaShel Posted November 13, 2017 Share Posted November 13, 2017 When I reheat sweet potatoes the next day, after baking them, they always are dark in the center, brownish, almost black. I am wondering if anyone knows why this happens. I know they are not rotten, I am talking about potatoes I reheat the next day after being promptly refrigerated. Does it maybe have to do with the iron content of the potato? Anyone else experience this? Thanks Link to comment Share on other sites More sharing options...
NoMoreCrunchyCravings Posted November 13, 2017 Share Posted November 13, 2017 It's as a result of an amazing little chemical called polyphenol oxidase, and is totally normal. Your potatoes are turning brown for the same reason raw white potatoes turn brown/gray, and why apples turn brown. They're still fine to eat, just don't look as pretty. For more information, look here: http://www.recipetips.com/kitchen-tips/t--945/why-fruits-and-vegetables-turn-brown.asp Link to comment Share on other sites More sharing options...
T2Andrew Posted November 13, 2017 Share Posted November 13, 2017 I bake / roast my sweet potatoes and reheat them on the stove. I've never experienced the black part. Link to comment Share on other sites More sharing options...
GrandmaShel Posted November 13, 2017 Author Share Posted November 13, 2017 Thanks for the info...I have been eating them anyway, they are soooo good, especially after not having sugar for 24 days. I really enjoy the sweet potatoes. I usually roast/bake them, it is only the next day that they have the brown-ness to them. I know regular potatoes turn brown exposed to air when they are raw, I just thought it was weird because these are cooked and it happens. They are extremely fresh, we live in a potato growing area. and got some from a local farmer just dug, dirt still on them. Maybe that makes a difference too. Any way, I will just keep eating my delicious brown sweet potatoes. Link to comment Share on other sites More sharing options...
LizaQ Posted March 26, 2018 Share Posted March 26, 2018 Piggy backing here - how long will half a sweet potato last in the refrigerator?? A little background for my random question - I'm planning to start the Whole30 next week and I am using this week to try new foods/recipes/techniques. I made a sweet potato in the oven and it was very good - but also very big! Link to comment Share on other sites More sharing options...
Administrators ladyshanny Posted March 26, 2018 Administrators Share Posted March 26, 2018 Around a week or so. It'll start to "weep" a bit and get a bit soggier but unless it smells bad or you visibly see fuzz on it, it's fine. Link to comment Share on other sites More sharing options...
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