Where is the specialty of Jiangnan stone mill sesame oil?

Yibin is a famous traditional specialty with a long history, which was famous all over the country as early as the beginning of this century. High-quality sesame seeds are selected, screened and cleaned, fried in a pot with slow fire, ground into a sauce blank with a stone mill, and stirred with boiling water according to a certain proportion. The color is bright orange, the viscosity is pure, the fragrance is overflowing, and the fragrance is overflowing, so it is known as "drip fragrance" (Yibin).