The first method is to draw down in the middle of the shrimp back with a knife, and you will see a black line, which can then be provoked with a toothpick. This method is simple and quick.

The second method is to insert toothpicks in the penultimate and penultimate segments of shrimp and pick out the internal organs. This method requires some experience and skills.

The third method is to grab the tail in the middle of the shrimp tail, straighten the shrimp body, and then pull out the whole tail together with the shrimp intestines.

Method four. After the shrimp is shelled, cut the "back" of the shrimp with a knife. Be careful not to cut too deep, so as not to cut the shrimp intestines. After cutting, take out the shrimp intestines.