According to CoinMeta, Taobao's flash purchase high-end home delivery catering project “Jiayan” began its gray-scale testing in mid-October in Beijing, initially covering 6 brands and 18 stores. Following Shanghai, Hangzhou, Chengdu, and Shenzhen, Beijing has become a new city for the “Jiayan” gray-scale testing, and the project’s national coverage has also expanded to include 27 brands and over 50 stores. Among the first batch of stores in Beijing for the gray-scale testing, four brands—Beijing Yan, Xiang Shang Xiang, Yue Jie, and Lu Shang Lu—joined for the first time; Lu Cai and Xu Jia Cai, which had previously participated in the gray-scale testing, also included their Beijing stores this time. It is understood that the “Jiayan” project selects partners based on brand quality, reputation, and industry status. After cooperation is established, the creation process begins with menu design: food experts are involved throughout to carefully select dishes suitable for delivery, removing those that are not appropriate, and then designing exclusive home delivery menus. Only after multiple rounds of delivery and taste testing are the dishes approved for sale.