Method 1: Insert a toothpick into the second section of shrimp back, cut it and pick out the shrimp line directly.
Method 2: Shell the shrimp head, leaving the tail, cut along both sides of the shrimp back, and push the shrimp back by hand to see the shrimp intestines. At this time, take them out by hand.
Method 3: When picking the shrimp head, don't break it at once, slowly turn the shrimp head, and the shrimp intestines can also be pulled out.
Method 4: cut off the head and tail, and squeeze out the shrimp line and dirty things by hand.