Steam crabs weighing less than 3 taels for about 10 minutes, and steaming crabs weighing 3 to 4 taels for about 12 minutes.

When steaming swimming crabs, it usually takes 10 to 15 minutes after the water boils. The specific cooking time is directly related to the swimming crabs. Swimming crabs weighing less than 3 taels need to be steamed for about 10 minutes, while those weighing 4 taels need to be steamed for 12 minutes. 4 taels or more need to be steamed for 15 minutes.

Raising crab seedlings:

1. Source and selection: There are two main sources of crab seedlings: fishing in natural sea areas and artificial cultivation. The size of seedlings is generally 80/kg. Crab seedlings are required to be neat in size, strong in physique, with complete appendages, strong vitality, and soft shells. The rate is less than 10%.

2. Stocking time: We usually stock them from late May to mid-June.

3. Water quality requirements: water temperature should be above 18°C, daily temperature difference should be less than 8°C, salinity should be 18-32, pH should be 7.8-8.6, ammonia nitrogen content should be less than 1 mg/L water body, dissolved oxygen should be greater than 5 mg/L water body, transparency Keep it at 30~40cm.

4. Stocking density: Generally, for crab seedlings of 80-100/mu, the stocking density should be controlled at 1000-1500/mu.