How long does it take to cook snail powder? It is generally recommended to cook bagged snail powder twice. For the first time, after the water is boiled, add snail powder, cook for 8- 10 minutes, and then take it out until the vermicelli can be broken with chopsticks and taken out. Take out the snail powder and cook it in boiling water for about two minutes, and then add all the ingredients when cooking for the second time. But if it is snail powder soaked in advance, it only needs to be cooked for three or four minutes.