Grilled cold noodles are the same as cooked cold noodles, except that the noodles are physically extruded by machines and bonded together by the viscosity of the noodles themselves. It's easy to crack It will harden when the temperature is low and crack when it is cold. Reduce the temperature, or steam it a little, and it will be soft. When the viscosity comes back, it will naturally not crack and it will be easier to bake. Making cold noodles at home is also very simple. The stall outside depends on the conscience of the stall owner, whether the oil used is good or not, whether the ham sausage is good or not, what sauce and hygiene problems. So we can't generalize whether it is junk food or not! Moreover, roadside stalls are not necessarily junk food, and restaurants also have a lot of unqualified oil. So, if you want to eat clean and healthy, you should cook it yourself at home. If you are greedy and lazy and want to eat out, don't think deeply, it will only increase your mental burden, and you will still eat!