The female crab is more delicious.

1 Look. The crab must be alive and fresh. The more the crab is, the fresher it is. Dead crabs are poisonous.

2 weigh. The heavier the crab is, the fatter it is, because the crab will slowly consume its own nutrients when it is salvaged, and it will be thin after a few days even though it won't die.

3Male and female. You can pick female crabs in the eighth and ninth months of the lunar calendar, and male crabs after that. How to distinguish between male and female crabs? The umbilicus of male crabs is triangular and that of female crabs is round.

How do you pick fresh river crabs? To buy fresh river crabs, the selection of crabs to do "five look":

A look at the color; the color of the crab to the green back of the white belly; golden claw yellow hair;

Two look at the individual; the individual to be large and old healthy;

Three look at the navel; navel to the outward convex, out of the average fat paste full of grease; and navel concave into the body of the fat body insufficient.

Three look at the navel.

Four look at the crab hair; look at the chelipeds where the chelipeds on the fluffy tufts, are fat feet old and healthy; and chelipeds without fluffy, the body is soft without fat.

Five look at the action; look at the vitality of the crab will be placed on their backs, abdomen to the sky, where they can quickly turn over and crawl, it seems old and healthy; and can not turn over and crawl, poor vitality, quality of the second.