The white jelly-like inside of a crab is crab paste.

Crab paste is mainly the male paragonad and its secretion. When the male crab matures, the paraphysical glands are abnormally developed and take up most of the reproductive system, which is rich in protein, lipids and other kinds of nutrients, and is highly nutritious and very tasty.

The integrity of crab paste has nothing to do with its taste or nutritional value. In the wild, the yolk of female crabs grows most plump in the ninth month of the lunar calendar, and the crab paste (crab oil) of male crabs grows thickest in the tenth month. Therefore, in the past, eating crabs, there are "nine female and ten male". It means: in September of the lunar calendar to eat female crabs, in October of the lunar calendar to eat male crabs.

The ancients often used "crab", "cream", "tender jade", describing the freshness of the crab. This refers to different parts of the crab. "Crab yellow", is the female crab body was striped purple-brown leafy ovaries (cooked yellow); "cream", refers to the male crab colorless transparent gelatinous spermatophore, cooked orange-red block, there is a "chest hidden amber The first is the "amber in the chest", which has been called "amber in the chest".

"Tender jade" refers to the meat of the chelipeds, that is, the white and tender crab meat in the carapace is like fat and jade. As for the description of the crab "mouth spit pearl", that is the crab in the water when breathing out carbon dioxide and water formed by the foam, see the crystal clear, just to prove that the crab is fresh.