Baby cabbage, Chinese cabbage, spinach, etc. It does not contain any harmful substances. The reason why they are carcinogenic is that some unscrupulous traders soak vegetables in formaldehyde in order to ensure their freshness and appearance, and the World Health Organization has determined that formaldehyde is a carcinogen, so it is said that Chinese cabbage is carcinogenic.
As long as the food purchased from regular channels is safe, you can smell it when you buy food. If it contains formaldehyde, it will inevitably have a pungent taste. If you can't smell it, it means there is no formaldehyde or the formaldehyde content is very low. As long as it is thoroughly cleaned, heated and cooked, there is no need to worry about formaldehyde.
Method for selecte Chinese cabbage
Observe the leaves carefully after you get the cabbage. If the leaves are big, thick and wrinkled. Explain that Chinese cabbage has less water content, if the leaves are small, thin and wrinkled. It shows that Chinese cabbage contains more water.
Look at the broken stems. If spareribs are sparse, Chinese cabbage is easy to rot and difficult to store. Many dense dishes are not easy to rot, so they can be kept for a while. Look at the stalk. The stalk is big and contains a lot of water, which is suitable for frying. Small stem, less moisture, suitable for rinsing.
When choosing Chinese cabbage, don't remove all the stems. Because the stem is rich in vitamins, it can also protect Chinese cabbage and keep it for a few more days.