2. In the ancient cookbook Historical Records, rice noodles were called "Zhen", which was refined from polished rice because it was called "Zhen". In the Song Dynasty, rice noodles were also called "rice noodles", which could be dried, white and bright, and as fine as silk thread, and could be given to others.
3. Rice noodles are strip-shaped rice products made from rice through more than ten processes, such as impurity removal, cleaning, soaking, grinding, gelatinization, molding and cooling. It has the characteristics of boiling resistance, refreshing and tender, and the boiled soup is not turbid and easy to digest.