Shrimp thread is not edible.

Shrimp thread is the black or green line on the back of the shrimp, the digestive tract of the shrimp, the shrimp will be cooked, the bacteria in the shrimp thread will also be killed by the high temperature, so shrimp thread can be eaten without removing. However, it is not recommended to eat shrimp thread, because the shrimp thread residue has not yet fully digested food residue, sediment, etc., not clean, may have a muddy flavor when eating, and with a bitter taste or sand, while affecting the taste of shrimp, so it is usually recommended that the shrimp thread to deal with before eating. Then gently tug it out with your hand.

2, open the back of the shrimp line: open the back of the shrimp line when one hand gently press the head of the shrimp on the cutting board, with a knife in the shrimp line of the location of the incision, open the edge of the shrimp line can be easily removed.