The remaining raw noodles: first spread the noodles with dry starch, put them in sealed bags, and then put them in the refrigerator for freezing. Noodles are easy to absorb the flavor of the surrounding food, resulting in cross-talk between foods, so noodles should be sealed separately. Besides, there is no steam, and the noodles won't stick. When cooking, chopsticks can be scattered with a flick.

The remaining cooked noodles: put them in cold water, scoop them up and put them in a bowl. Then add a proper amount of sesame oil to the bowl and stir evenly to ensure that every noodle is stained with sesame oil. Then put the noodles mixed with sesame oil into a bag, seal them and put them in the refrigerator for freezing.