The first reason for knotting kelp is for the beauty of ingredients. If we buy kelp at random, it looks very appetizing in the restaurant. So in order to make kelp look more delicious, tie a knot for him and put it in soup to look fresher.
The second reason for knotting kelp is to make it more convenient to eat. If kelp is in the pot piece by piece, it is inconvenient for us to pick it up, and sometimes it will be embarrassing to pick it up and fall into the pot. If we tie the kelp at this time, we can directly clamp it and it is very convenient to eat, so we tie the kelp for the convenience of eating.
The ultimate reason for kelp is to make its color, fragrance and taste more complete, because kelp has a high gold content. If you don't score in the cooking process, they will be one after another, and the sticky superposition will also affect the taste. It is enough to see that the benefits of knotted kelp are still very many.