Around 15 minutes.
The time to boil crabs is usually about 15-20 minutes. In fact, the time to boil crabs is very similar to the time to steam crabs, but the time to boil crabs is also related to the size of the crabs, the number of crabs, and the heat. Begin to cook crabs, in the pot pour appropriate water, a bubble over the top of the head of the crab a little more appropriate, and then pour into the yellow wine, add ginger can be.
Precautions
Crab we all like to eat, but if the method is not right, cooked out of the crab, meat and firewood and fishy, but also not flavorful, in fact, to want to cook out of the crab, tender and no fishy, nutrients are not lost, or need some tips. One is to cook the crab, do not rush to the pot, first put the crab into the refrigerator for a few moments, so that after processing, the crab legs will not fall off the light; the second is to fry the crab with hot oil and ginger first, you can reduce the fishy flavor, but also to lock the water inside.