1, there is a clear difference in structure between hollow hanging noodles and ordinary hanging noodles. Hollow noodles are hollow, with internal gaps and a tubular shape. While the ordinary noodles are solid, there is no gap, the shape of the flat sheet.

2, because of the void in the hollow noodles, it is easier to absorb the soup during the cooking process, increasing the richness of taste. And ordinary hanging noodles due to the lack of voids, cooking more tough, more uniform taste.