Mint. According to relevant public information, mint leaves are fresh in aroma and taste, which can add special flavor and taste to rice noodles, while the nine-story tower is rich in aroma and taste, which is not suitable for making rice noodles. Yunnan is located at the junction of subtropical zone and tropical zone, with warm and humid climate, which is suitable for mint growth. Therefore, mint is more common in Yunnan province and has become one of the common ingredients of Yunnan rice noodles. Yunnan rice noodle is one of the traditional cuisines in Yunnan Province, with a long history and profound cultural heritage. In Yunnan's food culture, mint leaves have become one of the common ingredients of rice noodles and one of the representative characteristics of Yunnan rice noodles.