The cooking time of prawns needs to be determined according to the size of prawns. Generally, 20-30g/prawn can be cooked in hot water for 5 minutes, while slightly larger prawns may take about 5 minutes. If it is fresh shrimp, the bigger shrimp can be cooked for 5 minutes, and the smaller shrimp can be cooked for 2-3 minutes. Therefore, the cooking time of prawns needs to be determined according to the size of prawns, generally between 2-5 minutes. The cooking time of prawns needs to be determined according to the size of prawns. Generally, 20-30g/prawn can be cooked in hot water for 5 minutes, while slightly larger prawns may take about 5 minutes. If it is fresh shrimp, the bigger shrimp can be cooked for 5 minutes, and the smaller shrimp can be cooked for 2-3 minutes. Therefore, the cooking time of prawns needs to be determined according to the size of prawns, generally between 2-5 minutes. The cooking time of prawns needs to be determined according to the size of prawns. Generally, 20-30g/prawn can be cooked in hot water for 5 minutes, while slightly larger prawns may take about 5 minutes. If it is fresh shrimp, the bigger shrimp can be cooked for 5 minutes, and the smaller shrimp can be cooked for 2-3 minutes. Therefore, the cooking time of prawns needs to be determined according to the size of prawns, generally between 2-5 minutes. Prawns need to be cooked for about 5 minutes. Pay attention to control the time when cooking shrimp, and don't cook it for too long. The meat of shrimp is soft, and it will boil the shrimp for too long, which will affect the taste. When cooking shrimp, you should boil the cold water before putting the shrimp in. If you put the cold water into the pot at the beginning, you will boil the ingredients in the shrimp together.