2. Cold rice noodles, which originated from the traditional cuisine of the Han nationality in Guanzhong area of Shaanxi Province, are the general names of rolled dough, dough, rice skin and stuffed skin. Popular in northern China. It is a rare natural green pollution-free food. Due to different raw materials, production methods and regions, there are hot rice (noodle) skin, rolled skin, baked skin and stuffed skin. The tastes are spicy, sweet and sour, spicy and so on. Cold rice noodles have a long history, which is said to have originated from the Qin Shihuang period and has a history of more than 2,000 years.