2. First, we wash duck eggs with clear water, and then dry them naturally.

3. Pour the white wine into the bowl, and roll the dried duck eggs in the white wine bowl for several times.

4. Pour the salt into another bowl and roll the duck eggs dipped in white wine in the salt bowl.

5. Then put the salted duck eggs in a fresh-keeping bag, wrap the bag in a sealed jar and seal it. It is best to seal the bottle with glass.

6. After all the duck eggs are prepared, put them in the shade 15 ~ 30 days. The inedible salted duck eggs are picked out and put in a fresh-keeping box for refrigeration.

7. When cooking, just boil the water, turn to low heat, and soak the salted duck eggs in slightly boiling water for 20 minutes to enjoy.