A: Kelp and kelp are one kind of food, and laver is a separate food. Kelp is also called kelp. They all belong to algae. Porphyra also belongs to algae. But they are not the same breed. Porphyra and its varieties. Very thin. A thin layer is very suitable for making soup. And kelp is thicker and longer. His other name is Khumbu. More suitable for cold dishes. I hope I can help you. Thank you.