The crab yolk and crab paste are the ovaries and seminal vesicles of the crab, respectively.

Crab paste, the paraphyses of male crabs as well as the secretions of the paraphyses, and the collection of semen and organs from the spermatophore of male crabs.

Crab roe, in fact, is not the same thing, but a combination of diverse things. Crab yolk contains glands, tissue fluids, and eggs that have not been removed from the body, mainly the ovaries and digestive and hepatopancreatic glands.

The main points of the purchase of crabs:

1, look: the crab's dorsal carapace is greenish-gray, glossy, belly is white, bright color, umbilicus upper part is not imprinted, the limbs are firmly connected to the shape of the curved.

2, weighing: the appearance of the eye to meet the requirements of the sea crab, one by one with the hand to weigh the weight of it, feel heavy or weigh heavier for the fat crab.

3, peel: peel the umbilical cover of the sea crab, if the shell of the crab yolk cohesion molding, the crab is a good crab.

4, pull: the legs of the sea crab are intact, gently pull the legs have a weak elasticity, indicating that it is a fresh sea crab; if the sea crab is not fresh, gently pull the legs, not only no weak force, and the legs are easy to break off.

5, smell: if you smell the sea crab has a fishy odor, the sea crab has been corrupted and spoiled, can no longer be eaten. Eating rotten and spoiled sea crab is very easy to cause food poisoning.

Reference: People's Daily Online - Autumn eating crabs more benefits of steaming crabs three tips