Sausage is a kind of smoked food, which contains a certain amount of nitrite. Eating it all the year round will increase the risk of stomach cancer. However, experiments have proved that as long as the sausage is boiled in water at 60℃ for 30 seconds, the nitrite content will be reduced by more than 35%, and the salt and fat content will also be reduced, which is more in line with the needs of a healthy diet. In addition, the sausage is fried or baked after this treatment, which shortens the cooking time, is not easy to become firewood, and has a fresh and tender taste.