In general, it is a common phenomenon that the skin of yam turns black. Many people will encounter this situation. Yam is a kind of food with rich nutritional value. Many people like to put some in the soup, but once the yam comes into contact with the air, it will turn black easily.
Can yam skin turn black to eat?
It depends on the state of yam if the skin of yam turns black.
The skin of yam is generally brown and gray, and black is usually caused by water immersion or black mold. Generally, the color turns dark just after water immersion. Some may be brown and dark, similar to black, which is edible.
What's the matter with the black of yam skin
The skin of the normal yam is brown and gray, but after being soaked in water, the skin color of some yams is heavy, so it turns brown and black. This kind of yam that has just been soaked in water can only be eaten immediately and cannot be placed.
Rotten
Yams are easy to rot after water immersion. Once bacteria grow after water immersion, they will rot. the color becomes very deep, and the skin is black seriously, which is inedible.
Moldy
Yams are rich in carbohydrates and water, which are easy to get moldy due to improper preservation. Therefore, the skin of yams parasitized by black mold will turn black.
What about the yam with black skin
Nothing
Eating just soaked yams, or a small amount of other dark yams for people with strong tolerance, will not happen.
Suffer from diarrhea
The quality of rotten and blackened yam food has been destroyed. Some people with poor stomach and intestines are prone to diarrhea.
Food poisoning
The mould will parasitize on the skin of yam and turn black, which will produce some metabolic toxins. People with sensitive constitution and weak tolerance will suffer from nausea, vomiting, dizziness, limb weakness, abdominal pain and other food poisoning.
What should I do if I eat yam with black skin? Drinking hot water
People who don't respond to the dark skin yam can drink some hot water or rice soup to promote the metabolism of yam.
Antidiarrheal drugs
Eat the skin blackened yam to have diarrhea. You can take some antidiarrheal drugs to prevent discomfort. Can eat some berberine, montmorillonite powder, diarrhea stop and other antidiarrheal drugs to help stop diarrhea.
See a doctor
In case of food poisoning and severe diarrhea, you should see a doctor and seek the help of a professional doctor to avoid serious physical discomfort.
How to keep the skin of yam from blackening?
Cryogenic storage
The yam can be dried in the sun, wrapped in newspaper, wrapped in bag and stored in the cold room to prevent the skin from blackening.
Cool and ventilated preservation
If there is no refrigerator, you can separate yams one by one and put them in a cool and ventilated place to ensure that the storage area is dry and can be kept for about 10 days without blackening.