Green back: the crab shell of hairy crabs should be blue, smooth and shiny; The image on the back is painted with varnish. At first glance, it looks gray; at second glance, it looks like a crystal lamp. Gray with blue, shiny.

White belly: Umbilical crustaceans paste mud, crystal white, no ink spots; The belly shell of hairy crabs is generally white, but good hairy crabs are white and shiny, giving people a feeling of crystal white. It reflects whether hairy crabs are stocked in high-quality water. Usually, there are dense bristles at the bottom of a clear lake. Hairy crabs often crawl on aquatic plants, rub against them, and constantly scour and polish them in clean water.

2, look at the shape-golden claw yellow hair protruding navel.

Golden claws: The claws of high-quality hairy crabs are close to the golden color of cut tobacco, while ordinary crabs often come into contact with mud, mostly grayish brown. Hairy crabs crawl at the bottom of the lake, their claws are often inserted into yellow mud and gravel, and aquatic plants are often trampled. Just like crawling on a natural playground, they can develop strong golden claws commensurate with their burly figure.

Yellow hair: the legs of high-quality hairy crabs are long and yellow, the roots are tall and straight, and the more hairs, the stronger they are; Hairs on the legs of hairy crabs are golden yellow and 3-4 cm long. Ordinary crabs not only have taupe claws, but also short hair.

Sudden navel: the navel of hairy crabs is prominent, which is generally full of fat and fat paste, and most of them are insufficient fat. When picking hairy crabs, those that are pinched or soft at once indicate that the crab meat is less, the shell is empty, and the navel of the fat crab will be slightly tilted, indicating that it is mature.

3. Look at the weight-the heavier the better.

Weight: Fresh crabs are heavier. Under the same size, heavier crabs mean more meat and fuller crab roe. When selecting, find a crab with a suitable size and a large weight as a standard, and then use this standard to select a crab with a similar weight.

4, look at vitality-sensitive eyes.

Eyes: the eyes of crabs are the most sensitive to external stimuli. When selecting, touch the eyes of hairy crabs first, and the more intense reaction means that they are fresh. There is a very convenient trick to choose, that is, pick up the tied hairy crab and touch your eyes with your hand to see if you blink, which means it is fresh.

Vigor: If the hairy crabs turn around, they can turn back quickly with crab feet, indicating that they are full of energy; Irreversible vitality is poor and cannot be preserved for a long time.

5, pinch soft and hard-crab legs are hard.

Pinch the crab's leg with your hand. If it feels soft, it means that crabs have no meat, and crab paste and crab roe are not enough to eat. If the crab's legs are hard, it means that it is a "strong" crab and can be selected by comparison.