Lehe, also known as He Lou Hehe, is called huó luǒ in Shaanxi. It is made by mixing pea noodles, naked oats noodles, buckwheat noodles or other miscellaneous bean noodles, and using Lehe bed (a wooden or iron tool with many round eyes) to make the noodles pass through circular intraocular pressure.

Lehe is a traditional folk pasta snack in China, which is one of the most common ways to eat in northern China. Doumian sometimes needs to add batter to adjust the hardness and taste of noodles, which is suitable for noodles that are not as sticky as wheat flour and cannot be made into noodles by ordinary methods. Unlimited music and harmony are the most famous and common in the north, especially in Shaanxi, Shanxi and Shijiazhuang, Hebei, and also at the junction of southeast Zhao County in Shijiazhuang and Ningjin County in Xingtai.

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The story of Lehe:

According to legend, Bao Qingtian, a teenager in the Song Dynasty, passed Wuji County. As soon as he got to the west gate of the county seat, he smelled the fragrance of buckwheat. He hurried into a happy family and called the bartender to "serve three bowls of buckwheat". The bartender deliberately increased the weight, filled three bowls and gave them to Bao Zheng: "If you can finish these three bowls, I will let you hit three sticks on my nose."

Bao Zheng said, "If I can't finish it, I'll let you fill my nose with three bowls of sweet vinegar." Who knows that the hungry black man ate three bowls of music and three bowls of sweet and sour. Bao Zheng shouted, "Shop assistant, get a stick quickly." At this time, the bartender ran away in fear. This story has been circulated. Infinite people always like to add more vinegar to buckwheat, which is called "sour food is enough".

Baidu Encyclopedia-Lehe