1. Wash the pickled Undaria pinnatifida.

2. Wrap it in a fresh-keeping bag.

3. Keep it in the fresh-keeping room of the refrigerator. Be careful not to take more than three days, and you'd better eat it as soon as possible.

4. If it needs to be preserved for a long time, you can clean the Undaria pinnatifida and put it in a plastic bag.

5, directly into the freezer to save. Keep it for a month at most, and the taste will be worse after a long time.