Shrimp head sauce is made by crushing shrimp head and shrimp shell, salting and fermenting, so it contains shrimp oil and is ruddy in color. After opening the lid, a layer of shrimp oil floated on it. Compared with shrimp paste, this paste tastes more delicious and has a unique seafood flavor. Fish head is one of the common raw materials for making shrimp paste, which is cheaper than shrimp meat. More in line with the needs of mass consumers.