Nowadays, people who bake sweet potatoes can often be seen in the streets, and of course there are many people who eat them. Eating sweet potatoes in cold weather does have a warming effect. Some people will sell their own sweet potatoes and steam them at home, which is also delicious, but some people will find that the sweet potatoes they bought home have sprouted, so can they be eaten after sprouting? Does sweet potato have black spots to eat?

1, sweet potatoes can still be eaten after germination.

Sweet potatoes can still be eaten after germination, provided that the buds are removed. Sweet potatoes will not produce harmful substances like potatoes after germination. As long as you cut off the long buds on the sweet potato, you can eat it, and there will be no legendary poisoning symptoms. It is recommended that you eat sweet potatoes as soon as possible, because the nutrition and water will be lost after germination, which will not only taste bad, but also lose its nutritional value.

2, sweet potatoes have dark spots and cannot be eaten.

Although sweet potato can be eaten after germination, it can't be eaten because of mildew and brown or black spots, which is caused by bacterial pollution of black spots. The toxin released by Alternaria alternata contains sweet potato ketone and sweet potato ketone alcohol, which will make sweet potato hard and bitter, and it is highly toxic to human liver, which is not conducive to human health. Consequences of eating black-spotted sweet potato: The biological activity of the toxin discharged by black-spotted pathogen will not be destroyed even if it is boiled and baked. After eating, gastrointestinal symptoms such as nausea, vomiting and diarrhea usually occur within 24 hours. In severe cases, there may even be high fever, headache, asthma, hematemesis, coma and even death.

3. How to preserve sweet potatoes?

The purchased raw sweet potato can only be stored for about 1 week, and then it will germinate. But if the sweet potato is preserved properly, the preservation time can be extended.

Method 1: The sweet potato is wrapped in newspaper and then placed in a cool place, which can be kept for about 3-4 weeks.

Method 2: After the sweet potato is bought, it can be kept dry outside for one day, and then placed in a cool and ventilated place. Put 3-5 ripe apples about 50 cm away from them.

Step 4: Skills

The storage environment should be dry, cool and ventilated. The ambient temperature is 6- 10℃ and the air humidity is 50-60%.

5. Precautions for eating sweet potatoes

1. It is generally not recommended to eat raw sweet potatoes, which is not only difficult to digest, but also brings metabolic discomfort to the human body;

2. Eat sweet potatoes must be cooked. Eating raw sweet potatoes is not only difficult to digest, but also not conducive to the absorption of nutrients.