A bad sweet potato will be mushy and have an unpleasant odor. The skin of rotten sweet potatoes will lose its original color, turning purple, red, or even black. The inside of a rotten sweet potato is soft and will fall off. A dark brown or black skin clearly shows that the sweet potato has gone bad. 2 янв. 2022 г.
How long do purple sweet potatoes last?
How long sweet potatoes last in normal room temperature depends on many factors, and it's best to keep them in a pantry to last 3–5 weeks. You can also store sweet potatoes in the fridge for 2–3 months, or freeze them to last even longer.
What do spoiled sweet potatoes look like?
Spoiled sweet potatoes have soft, spongy spots. They might have turned dark brown or black. Any mold is suspicious. Reject sweet potatoes that show signs of shriveling.
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