Refers to freshly ground coffee bought at Luckin Coffee Shop. According to official information of Ruixing, Ruifeng Zhongfan refers to freshly ground coffee purchased by Luckin Coffee Shop. The word "Rui Zhong Xing fan" comes from the advertisement of Luckin Coffee, which means Luckin Coffee has played an important role in promoting the navigation. The use of the word "Zhong Fan" aims to emphasize the leading position and boosting role of Luckin Coffee in the industry.