2. After the water is boiled, pour 2 Jin of duck intestines into the pot and stir fry quickly. After observing the slight expansion of duck intestines, quickly scoop them up with a colander and pour them into clear water (wash them with clear water several times). This process takes about 10 second.

3. After the duck intestines are soaked in clear water until they are fully expanded, the grease and sundries on the duck intestines are torn off, and the cleaned duck intestines are soaked in clear water for about 1 hour (water cannot freeze) and taken out.

4. Add a little duck rice rolls to clear water and marinate the duck intestines in water for about 15 minutes.

5, according to their own requirements, can be produced.