How to soak the processed dried shark fin shreds?

The method of soaking dried shark fin shreds is as follows:

1. Soak dried shark fin shreds in clear water for 24 hours, as shown in the figure below.

2.24 hours later, remove the shark's fin, pour off the raw water, then pour clear water into the pot, add the shark's fin and boil it, as shown below.

3. After the fire is boiled, cover the lid and cook on low heat for about 4 hours, as shown below.

4, 4 hours, turn off the fire to cool, take out the shark fin, soak it in clear water and wash it again, then take out the shark fin, as shown below.