Trai Sau, also known as Dracontomelum fruit, is a key ingredient in many Asian dishes with its unique sour-sweet flavor. The Phuc An Frozen version provides a convenient option for those looking to incorporate this fruit in their cooking without seasonal concerns. Frozen Dracontomelum preserves taste, nutrients, and enables year-round use. Renowned for being low in calories and high in vitamin C, adding this to your diet can boost your immune system. Perfect for cooking traditional Vietnamese sour soup or making refreshing summer beverages.