What does a purple sweet potato look like when it's bad? Is it ok to eat a purple sweet potato with white spots inside?

Purple sweet potatoes are the same as the sweet potatoes we usually eat. They are pollution-free and easy to preserve. You can usually use the refrigerator to preserve purple sweet potatoes. The temperature in the refrigerator is relatively low, which can extend the shelf life of purple sweet potatoes. However, it is not suitable to keep them in the refrigerator for too long. What does a purple sweet potato look like when it goes bad? Open it and take a look.

Contents of this article

1. What does a rotten purple sweet potato look like?

2. Can I eat purple sweet potatoes if they have white spots inside?

3. Should raw purple sweet potatoes be frozen or refrigerated?

What does a purple potato look like when it goes bad?

Purple sweet potatoes contain a lot of anthocyanins, and the skin and cooked meat are purple. If the skin of purple sweet potatoes is black, brown, or has black spots, it may be moldy or spoiled. Purple sweet potatoes, like potatoes and sweet potatoes, have no obvious odor, while spoiled purple sweet potatoes may emit a rotten or moldy odor, which is easier to distinguish.

Generally speaking, fresh purple sweet potatoes can be stored for 10 to 20 days, and if stored well, they can be stored for longer periods of time. However, cooked purple sweet potatoes can only be stored for 2 to 3 days at room temperature, and long-term storage will affect the taste and cause deterioration.

Purple sweet potatoes are best stored at 4-6°C, so refrigeration is a better choice. Wrap the purple sweet potatoes with plastic wrap and put them in a refrigerator freezer box. They can be stored for about 1 month, but be sure to pack them in a bag to avoid contamination with other foods.

When purple sweet potatoes rot, the nutrients inside are destroyed, the taste is poor, and more bacteria and microorganisms will be bred. Eating such purple sweet potatoes can easily cause gastrointestinal discomfort. Moldy purple sweet potatoes are toxic, and excessive consumption can cause poisoning.

Is it ok to eat purple sweet potatoes if there are white spots inside?

Purple potatoes with white spots are still edible. The small white spots on purple potatoes are usually just the starch juice of the purple potatoes themselves. When they dry, they will form small white spots. There is no need to worry too much. Moreover, the fresher the purple potatoes are, the more white spots and white juice there are.

Purple sweet potatoes are not edible when they sprout. This process produces an enzyme that degrades starch, and toxins are produced during the degradation process. These toxins are harmful and therefore cannot be eaten.

Moldy purple sweet potatoes should not be eaten, as they can cause diarrhea.

Dyed purple sweet potatoes are not edible either. Artificially dyed purple sweet potatoes contain a lot of artificial pigments, which are harmful to the human body.

Should raw purple sweet potatoes be frozen or refrigerated?

Putting raw purple sweet potatoes in the refrigerator will cause the starch structure to be destroyed easily, so freezing them is better, but be careful not to store them for too long. If they are kept in the refrigerator for too long, the nutrients in the purple sweet potatoes will be lost.

You can usually use the refrigerator to preserve purple sweet potatoes. The temperature inside the refrigerator is relatively low, which can greatly extend the shelf life of purple sweet potatoes. However, it is not suitable to store them in the refrigerator for too long. If kept in the refrigerator for a long time, the nutrients in the purple sweet potatoes will be lost and the taste will also change.

If the purple sweet potato is cooked, it cannot be stored in the refrigerator for a long time. Generally speaking, the storage time cannot exceed 3 days. Therefore, the purple sweet potato should be eaten as soon as possible after being cooked.