When does the crab turn yellow? Can you still eat crab roe when it is black?

Now it is the crab season, the major seafood restaurants have launched a variety of crab dishes, especially full of crab cream, which makes people drool, when does the crab have yellow? Can you still eat crab roe when it is black?

When does the crab turn yellow?

Generally speaking, crabs have yellow in autumn. To be exact, when the wind blows from the northwest, it is time to eat crabs. As the saying goes, "nine females and ten males" is the fattest time for female crabs in the ninth lunar calendar, and the most yellow. The male crab in October of the lunar calendar is full of paste, while the female crab is relatively poor, so it is best to eat crab roe in the ninth month of the lunar calendar (also available in October). At this time, as long as it is navel crabs have yellow.

Can you still eat crab roe when it is black?

I can't eat it. Because the black substance in the middle of the crab roe is the crab stomach, and it also contains sand and gravel, insects, aquatic plants and other food residues, which is very unclean and hygienic, so it is not recommended to eat, but these substances are removed from the crab stomach, which does not affect the consumption of crab roe.

The reason for the blackening of crab roe

Dead crab

Crabs are scavengers with a variety of food. most crabs contain toxins and parasites in their bodies. Therefore, crabs will be eroded by toxins and parasites within more than ten minutes after death. This kind of crab will be steamed again, there will be crab yellow silting black phenomenon, not suitable for eating.

The female crab is waiting for delivery.

There are some people eat female crabs will appear the phenomenon of black crab yolk, some of this is normal, crab fertilized eggs in the female crab body development for a period of time, about to be excreted from the body, the whole crab roe will change color, usually black or gray, this kind of crab roe is edible.

Environmental pollution

Crab farming has high requirements for water. For the sake of profit, many farmers raise crabs in ponds, rice fields and other places with more silt. The crab itself is seriously polluted. Crab roe is one of the organs and secretory glands in the crab body. It will also be slightly infected, resulting in a yellowing of crab roe color. This kind of crab is not suitable for consumption.

Crab stomach

There are some crab lovers eat a black thing when eating crab roe, this is the crab stomach, which also contains some crab food residue, although the crab stomach is not edible, but does not affect the consumption of crab roe.

Soft shell inner membrane

As the crab grows and develops, it molts its shell once in a while. Some time ago, a black membrane was formed between the hard shell and the crab roe. This kind of intima will cover the crab roe after steaming, giving the illusion that the crab roe turns black. In fact, this kind of black crab roe is still edible.