Lanzhou Lamian Noodles can be frozen, and different preservation methods have different shelf life. Generally speaking, if it is kept in the refrigerator, it can be kept for 24 hours; If the noodles are packaged separately and put into a sealed food preservation box for freezing or refrigeration, they can be preserved for 2-3 months; If dry ice is used for storage, it can be stored for 5- 15 days. Noodles in freezing or cold storage need to be thawed at room temperature before use to restore their taste and flavor.