The red flag has been burned for more than 400 years. It has undergone generational inheritance and future generations to innovate. Through 12 processes of “selection, type, simmering, burning, roasting, and product”, 12 processes are used to “outside the focus and tenderness”. Known for its fragrance, it is fascinating and nutritious, and it is very popular among consumers. It is a local speciality food that comes from all the customers. .