Sour pickles are preserved fruits and vegetable. Nanning has a long history of eating sour pickles. In a hot climate, eating sour pikles was to preserve cool and prevent wet, and the custom has persisted to the present day. Usually, the local products like mango, plums, pawpaw, peaches, cabbage and other fresh fruit and vegetable are pickled with ingredients like sugar, chili and vinegar. Sour, sweet and spicy, they are scrip and fresh, which is helpful to stimulate one's appetite.