Cabbage is black and can't be eaten.

The black cabbage is due to the deterioration, oxidation and a lot of mold. Eating such cabbage is easy to cause gastrointestinal discomfort, so don't eat it.

Whether cabbage can be eaten depends mainly on the following points:

1. Look at the appearance. Choose cabbage with smooth appearance. Black holes on the surface are traces of insect bites, while uneven glistening may be caused by bad pesticide spots. Don't eat cabbage like this.

2. Look at the color. Usually, cabbage is mixed with green and white. Generally, the green part is tender leaves, while the white part is vegetable help. If you like to eat tender leaves, you can choose cabbage with more green parts; Those who like to eat crispy and hard dishes can choose those with more white parts.

3. weigh the components. Cabbage in season is generally heavy because it is very fresh. If the cabbage feels soft and has no weight, it must have been stored for a long time. Don't buy this.

4. Look at the food gang. The growth of vegetables depends on the roots, and the picking starts from the roots. Observe the color of the cabbage root. If it is light green and white, it means that the cabbage is very fresh.

5. pinch the cabbage. Fresh cabbage is hard because it is full of water. Squeeze the appearance of cabbage. If it is soft, it means that the water loss is serious and it is not fresh.

Extended information:

Scientific storage of cabbage

1. Keep the cabbage intact. If you want to store cabbage temporarily, you'd better not cut it. Cut cabbage is easy to lose vitamin C in the dish, and the cut part is easy to deteriorate. If you have to store half of the cabbage, wrap it tightly in a plastic bag and put it in the refrigerator.

2. Freeze the fresh-keeping bag. In order to prevent cabbage from losing moisture and nutrition and affecting its taste, it can be wrapped with plastic wrap and stored in the refrigerator for up to two weeks.

3. Eat from outside to inside. Eat cabbage from the outside to the inside according to the layers, so that cabbage can always be fresh and nutritious.

4. Peel off the bad leaves in time. If the outer leaves of cabbage are withered and moldy, they should be peeled off before being preserved, otherwise it will easily lead to deterioration of other parts and finally make the whole cabbage inedible.

People's Daily Online-Cabbage: The vegetable balls are fresh when they are heavy.