Yam bean can usually be kept at room temperature for a long time. If yam bean germinates, it is best not to eat it, so as to avoid unnecessary troubles. Usually, the germination of plant roots will contain toxins, such as potatoes, which are common at ordinary times. However, I haven't seen any reports about the toxicity of yam or yam bean after germination. Just to be on the safe side, don't eat sprouted yam bean.

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Precautions:

Yam bean and kansui should not be eaten together, nor should they be taken with alkaline drugs.

Yam bean and pig liver are alike. Yam bean is rich in vitamin C, and pig liver contains copper, iron, zinc and other metal trace elements. When vitamin C meets metal ions, it will accelerate oxidation and damage, which reduces the nutritional value. Therefore, after eating pig liver, it is not advisable to eat yam bean.

Yam bean is on par with cucumber, pumpkin, carrot and squash. Cucumber, pumpkin, carrot and bamboo shoots all contain vitamin C decomposing enzymes. If yam bean eats them together, vitamin C will be decomposed and destroyed.

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