Gaoyou salted duck eggs are national geographical indication products. The ducks that are good at swimming and the rich fish, shrimps and snails in the lake make the duck eggs produced have large egg yolks, thin and transparent eggs, and have a unique umami flavor. They are also good at producing double yellow eggs. The pickled salted duck eggs have long been famous, with fresh, fine, tender, red, sand and oily flavors. The Qing Dynasty writer Yuan Mei said: "Pickled eggs (i.e. salted duck eggs) are the best, with fine colors and a lot of oil. The modern great writer Wang Zengqi has a special liking for it: "I really look down on salted duck eggs in a foreign land."

Gaoyouyouyouyouyouyouyouyouyouyouyouyouyouyouyouyouyouyouyouyouyouyouyouyouyouyouyouyouyouyouyouyouyouyouyouyouyouyouyouyouyouyouyouyouyouyouyouyouyouhero and poultry meat products production. The company's series of products have been certified by China Green Food Development Center. The fresh eggs produced by Gaoyou Madou, which are free-range in Hudang, are strictly selected as raw materials and are refined using traditional techniques. The double yolk eggs are red and white, and are a perfect match; the salted duck eggs are like condensed fat, yellow like flowing elixir, with the characteristics of pine, sand, oil, fresh and tender, and fine; the pine flower eggs are like beeswax and the patterns are like pine needles. It has both color, fragrance and taste, and is actually a classic Gaoyou duck egg. It has now covered nearly 3,000 stores and has also independently operated multiple new e-commerce retail platforms.