Should Oatmeal Be Refrigerated?
Dry oatmeal does not need to be refrigerated, but cooked oatmeal should be refrigerated if not eaten immediately. It is recommended to store cooked oatmeal in an airtight container in the refrigerator for up to 5 days. If you prefer to prepare and store your oatmeal in advance, then it is best to make only the amount of oatmeal you intend to eat within a few days to avoid waste.