Not expensive. Compared with pork, chicken, fish, etc., the price of beef is relatively more expensive. It is not expensive to eat cold beef in Lanzhou Ramen for 50 yuan. Lanzhou beef noodles, one of the common noodles, is also a traditional famous food in Lanzhou. It originated during the Jiaqing period of the Qing Dynasty, and its founder was Chen Weijing, a student of the Imperial Academy. It has the characteristics of "one clear, two white, three green, four red and five yellow". It has a beautiful color, fragrance and is famous all over the country. There are signs saying "Lanzhou Authentic Beef Ramen" all over the country.