Bao Si beef noodles were not founded in Beijing. By querying Anxin. Com, and then click on catering > pasta > With the joining of Bao Si beef offal noodles, we can know that the headquarters address of Bao Si beef offal noodles is located at G1-KLOC-0/03, Furunyuan, Shangcheng Ideal New Town Residential Area, Yanjiao High-tech Zone, sanhe city, Langfang City, Hebei Province. Therefore, Bao Si beef noodle was not founded in Beijing, but in Hebei.