Duck egg, also known as green skin. Select the natural ducks in the lake to eat fish, shrimp and aquatic plants in the lake. The traditional duck breeding method creates natural and nutritious fresh duck eggs. It is pickled by traditional technology, wrapped by mud mixed with salt and seasoning, vacuum packed by modern technology, and processed by high-temperature sterilization. It has four characteristics of pine, sand, tenderness and fragrance. The authentic "red heart duck egg" is boiled, and the egg yolk and egg white are white. The egg yolk is horizontal yellow, layered and Sandy. After being cut, there is oil exuding, and the taste is soft and fragrant, not salty. "Red heart duck egg" is a common ingredient in cold dishes of wine and banquet, and it is also a domestic dish with pasta for breakfast.