Method 1: First, soak the dried Dongsheng lan cuttlefish in cold water for 3 hours, then remove the skin and put it into the basin after it is slightly soaked. 2. At this time, it is necessary to start distributing cooked alkaline water, because dried cuttlefish will be better and faster if it is soaked in alkaline water. The components of cooked alkaline water are mainly soda ash, limewater and boiled water, and the ratio of the three is roughly 2:3:5. The water quantity should be about the height of dried cuttlefish. After preparing cooked alkaline water, put the peeled dried cuttlefish in. After about 3 hours, take out the soaked cuttlefish, rinse it with cold water and cook it. Method 2: 1, before soaking the dried cuttlefish, bake it with fire, remove the black film on the surface of the dried cuttlefish by hand after baking, and then soak it. 2. Put warm water in the basin, add some baking soda powder, stir by hand, and put the dried cuttlefish with black film peeled into this hot water for about 2~3 hours. 3. Soak the dried cuttlefish soaked for 2-3 hours in warm water without baking soda for 1~2 hours, so that the dried cuttlefish is completely soaked and soft. Then clean the completely soaked and soft dried cuttlefish with clean water. When cleaning, be sure to open some gaps in the dried cuttlefish and wash all the unclean things in the gaps.