Introduction to sweet potato celebration cake: Changtan’s sweet potatoes have always been of high quality, and its products, such as mung bean noodles and vermicelli, are prominently displayed on supermarket shelves. The raw materials for making "Sweet Potato Qing Cake" are refined from local sweet potatoes and glutinous rice flour. After coming out of the cage, the "Qing Cake" is brown in color and has a refreshing fragrance in the nose. It is tangy when it is hot and lingers when it is cold. It is delicate in the mouth, tough and smooth, soft but not sticky, sweet but not greasy. It is indeed a dazzling asset.