2. Generally speaking, medium-sized snails can be boiled for about 5 to 6 minutes, not more than 10 minutes. Add water and bring to a boil with high fire, then add snails, keep the fire on, and watch the snail meat stand out. Boiled snails need to pay attention to the heat. If time is too short, they will be unfamiliar; if time is too long, they will age.