In Sichuan, Fujian, Guangdong, Guangxi, Guizhou, Yunnan other regions of China, chestnut fruits are mostly propagated through fruiting, with varying sizes, low sugar content, high starch content, slightly powdery flesh. They adapt to the climate characteristics of high temperature humidity, are therefore classified as one of the earliest cultivated economic tree species in human history. China has a long history of cultivating chestnut.

Raw flour does specifically refer to any type of starch. Raw flour is a term commonly used in mainland Hong Kong style recipes, is often used for cooking. Corn flour is used as raw meal in mainland Hong Kong, while Taibai flour is commonly used in Taiwan. Processing of sweet chestnuts

Chopstick stirring method: Take all two chestnuts, remove their shells, put them into a basin, soak them in boiling water for a while, then stir with chopsticks. The skin of the chestnuts will detach the flesh. The soaking time should be too long, otherwise it will affect the nutritional composition of chestnuts. Li Taro processed the chestnuts quickly the flesh was intact. Peel off the shell of chestnuts using machinery manual means. Underwear can be peeled off .