noun
freeze-dried tofu; koya-dofu
A traditional Japanese preserved food made by freezing, aging, and drying tofu. It is rehydrated before use in simmered dishes and soups.
高野豆腐を水で戻してから煮物に使います。
I rehydrate the freeze-dried tofu in water and then use it in simmered dishes.
高野豆腐は軽
Koya-dofu is light and keeps well, so it can also serve as emergency food.