2, forcibly pick up the shrimp line, and pick out the shrimp line.
3. Generally, there is a raised thorn in the middle of the shrimp head. At this time, you only need to cut a hole in the thorn position with scissors.
4, then use the plane of scissors to pick out the whole brain, and at this time the whole shrimp line will be pulled out.
5. Hold the raw shrimp by the neck, then pull out the head together with the shrimp line, and you can go to the shrimp line.
Extended data:
Most of the organs of crayfish are concentrated in the head, among which shrimp yellow, which is the gonad of crayfish, is very delicious, and there are also organs that affect the health of consumers, such as liver, excretory organs and excretory holes.
Crayfish live in lakes and rivers, and inevitably ingest heavy metals such as arsenic, cadmium and lead. Most of these heavy metals gather in the head of crayfish. Heavy metals cannot be metabolized, and will become a health hazard after entering the human body. Therefore, it is not recommended to eat the head of crayfish.
The head and abdomen of crayfish are connected together, and its excretion and metabolism process is carried out in the head, and it is excreted through the shrimp line. Therefore, the shrimp line on the back of shrimp is also the waste that has not been excreted by shrimp, and it cannot be eaten from the perspective of food safety. The saying that crayfish have parasites has never stopped.
All kinds of fish species living in nature inevitably carry parasites. To avoid parasites from being ingested into the body, the key is to cook them thoroughly. Like the traditional production technology favored by Changsha people, high temperature, hot oil and fire have experienced such "high roasting", and parasites in crayfish have become one of the nutrients. Therefore, cooked crayfish is safe.
Crayfish farming has been scaled up, some in ponds and some in rotation with rice. However, no matter how it is raised, crayfish naturally tend to live on scavengers, and it is easy to become a carrier of parasites. When people cook crayfish at home, the temperature should be above 100℃ and the time should be above 10 minutes, so that parasites can be eliminated.
Reference: Xinhuanet-Eat lobster with shrimp head and shrimp line removed. Eat raw chilled crayfish and beware of parasites.