Yes, you can freeze almond flour to extend its shelf life. Almond flour can sometimes go rancid if stored for too long at room temperature, so freezing it can help preserve its freshness. To freeze almond flour, place it in an airtight container or freezer bag and ensure it is sealed tightly to prevent moisture or odors from entering. Label the container with the date to keep track of its storage time. When you're ready to use the almond flour, simply thaw it at room temperature or in the refrigerator before incorporating it into your recipes.