This trio of products was once the monopoly of people from Shandong Province, but because they are easy to make--all that is required is the willingness to get up in the middle of the night to crush soybeans and bake the shaobing--many NCOs learned to make them from army cooks or their fellow officers, and on leaving the forces opened a shaobing shop to earn a living.
燒餅油條和豆漿這套行檔，當初是山東老鄉的專利，由於手藝簡單易學，全靠半夜即起磨豆、烤餅的刻苦精神，許多士官從軍隊裡的夥夫或同袍學到手藝，退伍後就開間燒餅店維持生計。