1. Soak the dried kelp in a basin filled with water for about 30 minutes, then wash off the sediment in the kelp and remove the roots.

2. Put the washed kelp into the basin and cook the kelp after the pot of water boils.

3. Add water to the pot and bring it to a boil. Pour the kelp in the pot into the pot and cook for 20-30 minutes. In order to improve the taste, a proper amount of vinegar can be added to the pot.

4. When it is ripe, take the kelp out of the pot and put it in the basin until it gets cold.

5. Dry the cooled kelp, and put it evenly on the cooling rope for sun exposure and drying.

6, easy to store and cook after drying.