To. Lao Tai Men buns are soup buns, specialty snacks, as early as the Northern Song Dynasty market has been sold, then called grouted steamed buns or grouted soup buns, the famous origin of Kaifeng, Xi'an and other places, according to the query related to the information shows: to join is the use of the merchant's trade name, to obtain the technology of the package buns, however, the package buns have to be their own package, the old Tai Men will not give their own package good.