Before curing duck eggs, all duck eggs need to be washed, because there is a protective film on the surface of duck eggs. If you don't wash it, the duck eggs won't taste good, so you can speed up the pickling of the duck eggs and taste better after washing.

Duck eggs are rich in nutrients such as protein, fat, minerals and vitamins. Moreover, duck eggs contain a variety of protein, the most important of which is ovalbumin in protein and vitellin in yolk. Protein is rich in all kinds of amino acids necessary for human body, and it is completely protein.