J&G started in 1973 as a food stall within a wet market in Taipei's Ximending neighborhood, but its current recipe was not developed until 1979. In the 1980s, the stall was moved to Jiguang Street in Taichung. J&G became a chain store in the early 2000s, and later transitioned into a fast casual restaurant in the 2010s. As of January 2019, the chain has 326 restaurants in Taiwan, Hong Kong, Malaysia, and Canada.[1][2] Its flagship store is located at the corner of Zhongshan Road and Luchan East Road in Taichung, a few blocks away from its original location.[3][4]
Though the store specializes in fried dishes, some stores also sell lu wei and bubble tea.[3][4]