Yes, it is possible to freeze oatmeal porridge for later use. Here are some tips for freezing oatmeal: Let the porridge cool completely before transferring it to a freezer-safe container. Putting hot porridge directly in the freezer can lead to frost build-up. Leave room at the top of containers for expansion as the oatmeal freezes. Seal tightly. Porridge can be frozen in individual portions for quick reheating. Add any toppings like fruit or nuts after reheating, not before freezing. The toppings can get soggy. Steel-cut or rolled oats freeze better than instant oats, which can become gummy. Thaw overnight in the fridge then reheat on the stovetop with some milk or water to loosen it up. Stir frequently while reheating and add liquid as needed. Frozen oatmeal is best consumed within 2-3 months.