1, production method: northeast cold noodles: northeast cold noodles are the specialty dishes in northeast China, mainly composed of noodles, vegetables and seasonings. Noodles are usually made by stirring flour into dough, and then cutting into fine noodles to cook. Then the cooked noodles are cooled in cold water, and finally mixed with vegetables and seasonings and stirred. Korean cold noodles: Korean cold noodles are traditional Korean dishes, mainly composed of wide vermicelli, vegetables and seasonings. Wide vermicelli is made by mixing flour to make dough, and then rolling and cutting it for many times. Cooked vermicelli will be cooled with cold water and then served with vegetables and seasonings.

2, taste: northeast cold noodles: the taste of northeast cold noodles is relatively refreshing, noodles have a strong taste, common ingredients are cucumber, bean sprouts, egg skin, etc., seasonings are generally soy sauce, vinegar, peanut butter, etc., the taste is hot and sour. Korean cold noodles: Korean cold noodles have a spicy taste, and noodles have a soft taste. The common ingredients are cucumber, kimchi, boiled eggs, etc. The seasonings are generally Chili sauce, sesame sauce, soy sauce, etc., and the taste is hot and sour.