In autumn, the climate gradually turns from cold to cold, and crabs grow stronger. The digestive glands and ovaries of female crabs grow into crab roe, which turns into crab roe in spring to prepare for the needs of winter and next year's reproduction.
At this time, when you peel off the crab shell, you can see that there are many yellow sticky things in the crab shell and crab tuo, that is, raw crab yellow.
After cooking, the crab roe turns red, and the deeper the red, the thicker the crab roe. In order to prepare for the winter, male crabs gradually accumulate fat and grow into crab paste, commonly known as crab oil.
Peel off the shell of the male crab, but what you see in the same place are white and sticky things, namely crab paste and crab oil. After cooking, crab paste becomes translucent. The more crab paste, the stronger the male crab.
Crab yolk and crab paste are not only delicious, but also nutritious, and are the essence of crabs. In the wild environment, in September of the lunar calendar, the crab yellow of the female crab grows the most plump, and in October, the crab oil of the male crab grows the thickest.
Therefore, before eating crabs, it was said that there were nine females and ten males. It means eating female crabs in September and male crabs in October.