2. The rectum of shrimp is full of dark brown digestive residues and contains bacteria. When cleaning, the front part of the head can be cut off with scissors, and the residue in the stomach can be squeezed out. The shrimp is cooked until it is half-cooked, and the shell is peeled off. At this time, the back muscles of the shrimp can be easily turned up, and the rectum can be removed and processed into various dishes. Larger shrimp can be cut along the back with a knife when cleaning, and the rectum can be directly taken out and cleaned, and then processed into vegetables. Cleaning and cooking in this way is hygienic without losing the delicious taste of shrimp.