Bitter gourds cultivation has a history of over a hundred years in Duruan. The sandy soil is very suitable for raising bitter gourds, and the shape of the gourds is different from that of other regions. Bitter gourds grown here are shaped like big papayas with flat tops,have thick and grainy skins, and taste slightly bitter yet sweet. When cooked, they become crispy and can be eaten without leaving any residue.