The shrimp with a closed tail after cooking is dead. Experts introduced some tips on how to choose shrimp. Look at the body shape: the head and tail of fresh shrimp are complete, the head and tail are closely connected with the body, and the shrimp body is quite stiff and has a certain degree of curvature. Stale shrimp, head and body, shell and meat are loosely connected, head and tail are easy to fall off or separate, and its original curvature cannot be maintained. Look at the meat quality: fresh shrimp, the meat quality is firm and tender, and it feels hard and elastic when touched by hands. Stale shrimp has soft meat and poor elasticity. Smell: Fresh shrimps have normal smell and no peculiar smell. If there is an odor, it is a bad shrimp. How to identify glue-injected shrimp? Generally, the head of shrimp will swell badly after being injected with glue. After being injected with glue, it is easy for the shrimp body to rebound by hand, and it will not sink like a normal shrimp body, and the joint between the head and the shrimp body is very easy to peel off by hand. Break off the shrimp head, peel off the shrimp shell and observe carefully. If the shrimp meat looks transparent and bright, it is generally nothing if there is no translucent material. If you find a sticky jelly-like substance, be careful. The freshness of shrimp directly affects the taste after cooking. How to avoid eating dead shrimp in restaurants? Experts also introduced a trick, that is, look at the tail of shrimp. If the shrimp is cooked alive, the tail of the shrimp is open after cooking. If the tail of the shrimp served is closed, it means that it is cooked by dead shrimp. People think that wild shrimp tastes better than farmed shrimp. According to experts, the taste of shrimp is closely related to the variety and growth environment, and the taste of the same shrimp is different in different environments. For example, Penaeus vannamei can be cultured in seawater or fresh water, but Penaeus vannamei cultured in seawater will be more delicious.