1, not knotted kelp when cooking, it will stick to the bottom of the pot, resulting in paste, cleaning up is very troublesome, so kelp soup should be knotted.

2, the surface of the kelp is relatively slippery, it is not easy to clip up after cooking, so the kelp will be knotted, can be anti-slip, easier to clip.

3, the surface of the kelp after boiling water will be slippery, it is difficult to use chopsticks to separate them, piled up in the kelp will also affect the taste.