The "Xu Changxing Roast Duck Making Technique" was created during the Xianfeng period of the Qing Dynasty. A shop was first opened in Nanjing City, and then the Xu family's direct descendants Xu Peizhang and Xu Zusheng inherited the ancestral business in Changsha and it has been passed down to this day. The production process of this project is exquisite, and the "stewed oven" baking technique is original. The finished product has a wrinkle-free skin, is crispy on the outside and tender on the inside, and has excellent color, fragrance and taste. "Yang Yuxing's noodles, Xu Changxing's duck, and Deyuan's buns are so delicious." This Changsha folk song is a praise for Xu Changxing's roast duck. It has become a popular delicacy in Changsha and a food business card for Changsha. In 2014, with the approval of the Changsha Municipal People's Government, Xu Changxing's roast duck making technique was successfully applied for the fourth batch of municipal intangible cultural heritage list. Information source: Changsha Intangible Cultural Heritage Protection Center Information source: Changsha Intangible Cultural Heritage Protection Center