Crayfish yellow is an edible ingredient in the head and chest of crayfish, which is very delicious and nutritious, just like crab yellow and crab paste of crabs, so the yellow head of crayfish is edible.

In addition to shrimp yolk, there are liver, pancreas, stomach sac, seminal vesicle, mouthparts, fallopian tubes, shrimp brain, green gland, intestine and heart. In the skull, there are gills. It is best not to eat other parts except shrimp egg yolk.

shopping tips

1, season: The best time for crayfish is from May to1October, which is yellow and fleshy. Even the three sections on the big claws are full of elastic teeth and snow muscles from beginning to end.

2, color: look at whether the crayfish is clear water or muddy water. At first glance, the back is red and clean, which is acceptable. Then look at its belly fluff and claws. If it is white and neat, it is basically raised in clear water.

3. size: you should try to buy lobsters that have just grown up. It is too small. After all, it tastes tasteless. Touch its shell with your hand, it's hard and hard, and it's old. It is as elastic as a nail, but it will change its shell when it grows up, so we should buy a soft shell.

The above contents refer to Baidu Encyclopedia-Crayfish.