The main reasons for knotting kelp are as follows:

1, easy to preserve iodine;

2, because the kelp is slippery, not good to clip after cooking, knotting can increase the friction with chopsticks, so that the kelp can be easily clipped;

3, kelp should be sun-dried after immersed in sunshine, dry kelp is easy to break, and tie a knot to facilitate the transportation and storage;

4, do not tie the knot in the seaweed When cooking, it will stick to the bottom of the pot, resulting in paste, cleaning is very troublesome, so kelp soup should be knotted;

5, in addition, the kelp knot to show welcome and respect for guests.