1. Ginger can be eaten when it turns green and germinates after being put for a long time. It will not germinate like potatoes and produce solanine which is harmful to health. On the contrary, when ginger turns green, it will produce substances that are beneficial to the body. This is because after a period of sunshine, some substances in the skin of ginger will be converted into chlorophyll, which is a substance that is beneficial and harmless to the body, so green ginger is edible.

2, but if it goes moldy for a long time, a whole ginger can't be eaten. Because the rotten ginger contains safrole, it can denature and necrosis liver cells, thus inducing liver cancer, esophageal cancer and so on. , so it is not suitable for eating.

If it is preserved for a long time, it can still be eaten after drying, because it is very common in life and is also used as a medicinal material. It still has great medicinal value, which can help our body to treat corresponding diseases. At the same time, some of the ingredients are also very beneficial. Usually placed in Chinese medicine, it can play a very good role in regulating the functions of the corresponding organs of the body and can help us prevent and treat corresponding diseases.