Helao is an ancient variety of pasta with a history of about 1000 years. Popular in northern families, especially in Shanxi folk and northern Shaanxi. In different places, its name is somewhat different, such as river fishing noodles, bed noodles, noodles, and river fishing or river fishing. When doing river fishing, there is a special tool for river fishing, called "river fishing bed". The bed was made of thick and curved wood, and now it is also made of iron machinery. There is a wooden core in the middle, which can move up and down like a piston. The old wooden river fishing bed is to dig a round hole the thickness of a cup on a piece of wood, and the top and bottom of the hole are transparent. Nail a piece of iron or copper plate with evenly distributed holes and moderate size under the pit. There is a cylinder connected to the shaft above the river fishing bed. Put the river fishing bed frame on the pot, rub the mixed noodles into a circle, dip them in water, fill the round holes on the noodles, put the wooden core into the holes of the river fishing bed, then press the handle of the river fishing bed, press (squeeze) the wooden pole by hand, press the noodles into the boiling water pot from the small holes, and then press the noodles on the bottom of the river fishing bed with a knife. Shanxi people generally say that they can eat. It takes two or three people to operate a big river fish bed. But families also use small rivers to catch beds, which are shaped like big rivers to catch beds, but the size is much smaller. Taste: Helao noodles are harder than fish noodles and softer than Daoxiao Noodles, each with its own beauty. The river fishing surface has compact structure, uniform thickness, suitable length and soft and convenient entrance. This is delicious spaghetti. The detailed method cannot be found.