Chinese cabbage is a common vegetable on the dining table. It is not only suitable for hot pot, but also used to make cooking, stir-fry, side dishes, soups and other dishes. Sometimes you will see black spots on the snow-white leaves. Can you eat this? Is it harmful to health?

The blue hair genius (Green Hair) who has 10 years of experience in fruit and vegetable merchants in Japan pointed out that this black spot cannot be removed after cleaning. Many people choose to abandon it because they feel uncomfortable or uneasy, but it is actually a pity to do so. He explained the reason why the black spots of cabbage should not be abandoned.

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Blue Hair Sword said that the black spots on cabbage are actually a kind of "polyphenol". Sometimes black spots may be caused by worm damage or bacteria, so they must be carefully cleaned and checked before cooking; but if you find that the black spots cannot be rubbed or washed, this is usually the so-called "sesaemia", which is actually the result of oxidation of polyphenols on the surface of cabbage.

polyphenols have antioxidant effects, are harmless to the human body, and may even bring health benefits. Therefore, because the black spots discard the cabbage is actually too wasteful. The single-handedness and discarding it will not only cause food waste, but also increase unnecessary burdens on household expenses.

The situation where cabbage needs to be discarded

However, there are still several situations that need special attention:

‧If the dark spots are concentrated into a large block and accompanied by a musty smell, it may be black bacteria, so it is recommended not to eat it.

‧If a part of the cabbage has become soft, peeled out of brown liquid, changed color overall, or produced mucus, it may have rotted, and it is not recommended to eat it in this case.

As long as the above conditions are not present, cabbage with dark spots is still safe and can be eaten without discarding it. In addition, if you find that the cut of cabbage changes from yellow to green, this means that the freshness is reduced, but it is still edible, so this type of cabbage will not be wasted.