It usually takes about 15 to 20 minutes to boil crabs.

The cooking time varies depending on the size of the crab. Crabs less than 3 taels can usually be cooked in 15 minutes. Crabs above 3 taels are recommended to be cooked for about 20 minutes to fully cook the crabs.

When cooking crabs, it is best to cook them in cold water, which can ensure that the maturity of the crabs is more consistent and the crabs taste better. Before cooking crabs, the crabs need to be thoroughly scrubbed, especially the mouth and abdomen of the crabs to prevent dirt from affecting eating.

Tips for cooking crabs

1. Before cooking crabs, first use a small brush to clean the crab legs and shells, then put them in clean water for half a day so that the crabs can Drain the dirt from its belly. After cleaning the crabs, you can add an appropriate amount of white wine to marinate them, which will make them taste better.

2. Before cooking, tie the crab legs with a rope to prevent the crab roe and crab oil from flowing out during the cooking process, and then put them on a plate.

3. Pour an appropriate amount of water into the pot, put the steamer in and add the crabs for 15-20 minutes. The lid cannot be opened during the cooking process. It must be steamed all at once. After it is cooked thoroughly, you can dip it in vinegar or add some minced ginger and stir it before eating.