If it is raw before peeling, wrap it with plastic wrap and put it in the refrigerator (the temperature can be 1-4 degrees).
If there is no refrigerator, find a pot or barrel that can hold the taro to be preserved, and find some fine river sand (water content is about 10-20%). Fill a layer of sand at the mouth of the kettle or barrel, and compact a thick layer of sand at the mouth of the kettle or barrel (the taro should face up).
The above two fresh-keeping methods can be kept for 3-4 months, but they should be checked regularly.
Rot, clear in time to avoid infection.