The Yang family Yangtao soup, which has been sold in Tainan for over 60 years, still adheres to traditional methods to make these preserves. They select fresh yangtao, pineapple, peaches, and mangoes according to the seasonal abundance of each fruit. The pickling process for each type of fruit preserve is done in accordance with the methods taught by their great-grandmother, and they have complete control over the process, ensuring guaranteed quality. The Yang family Yangtao soup, which has been sold in Tainan for over 60 years, still adheres to traditional methods to make these preserves. They select fresh yangtao, pineapple, peaches, and mangoes according to the seasonal abundance of each fruit. The pickling process for each type of fruit preserve is done in accordance with the methods taught by their great-grandmother, and they have complete control over the process, ensuring guaranteed quality.