1 If you want to make cold Undaria pinnatifida, you need to blanch it in addition to soaking. If you don't blanch it, Undaria pinnatifida will have a fishy smell and taste bad, but blanching can remove the fishy smell. Generally, it doesn't take too long to blanch it in boiling water for about 2 minutes.

2, Undaria pinnatifida blanching is relatively simple, clean it and cut it into pieces, soak it in clean water for 10 minutes, then fry it in boiling water for 2 minutes, then take it out and cool it with cold water, then add your favorite seasoning and stir it.