Do you use cornmeal? How do you store it to last longer? It is an organic meal that can be used as an alternative for wheat flour. It is easier and simple to make. So, does cornmeal go bad? This is a question that we may be asking ourselves when we have the cornmeal in our kitchen cabinets. Most foods come with a shelf life that is limited. How long will the cornmeal last? The following information will help us to understand more about the shelf life and facts about the cornmeal.