According to Huangchuan County Records, 1999, Huangchuan County suffered from drought, and the three brothers, Lei garden village and Lao Lei Jia in Xiaoludian Township, mainly cultivated land. Since the drought in 1999, the three brothers of Lao Lei family have used the spring and summer leisure season to select high-quality sweet potato starch to make vermicelli. Because of the manual production method of high-quality starch, they produce fine products: "crystal clear, thin and clean, uniform texture, insoluble after long cooking."

In other words, there are now five famous foods in Huangchuan (tribute noodles, vermicelli from the old Lei Jia rice noodle shop, fried mung bean balls, steamed buns with high columns and hot soup).