Texture. Once sweet potatoes turn mushy, you can be sure that they have gone bad. Usually, their ends become soft before turning brown or black. As soon as these parts spoil, the flavor of the whole tubers will be affected.
How do you know when a sweet potato has gone bad?
Black Spots and Brown Spots: The appearance of sweet potatoes is the most tell-tale sign to recognize a rotten sweet potato. A typical indication is black and brown spots. If these spots appear in a sweet potato, it means that this vegetable is rotting and should be thrown away.
Do uncooked sweet potatoes go bad?
Fresh raw sweet potatoes last about two weeks in the pantry. If the temperature is lower than room temperature, they can last even up to a month. When it comes to cut sweet potatoes, they probably can last even a week or so in the fridge if stored properly.
How long do uncooked 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 does the inside of a spoiled sweet potato look like?
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.
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