Freezing Mashed Potatoes Food Network. Our grocer sometimes sells organic russet or red potatoes. Directions for freezing (recommended freezer storage time:

Fat creates a “protective coating” around the food components , preventing them from becoming susceptible to the grainy, mushy texture that plagues most frozen food. So, can you freeze mashed potatoes? Make the topping ahead of time and stash the unbaked clumps in a zip top bag.