1. Cryopreservation: When there is suitable temperature and humidity, yam bean will begin to germinate. To prevent yam bean from sprouting, yam bean can be kept in the refrigerator. Low temperature can inhibit the growth and development of organisms and delay the germination time of yam bean.

2. Dry storage: After yam bean bought it, steamed it and sliced it and dried it in the sun, which can dry the water in yam bean. yam bean without water will not germinate again, but it should be stored in a cool and dry place to prevent moisture regain and deterioration.