Several companies make organic corn tortillas that are available in many supermarkets (even look for store brands). Be sure to look for those with very few ingredients. Sprouted corn tortillas are a great choice, but more expensive, and will almost always be kept in the freezer section because they are made without any preservatives and don’t last long on the grocery store shelves. All tortillas can be kept in the freezer. We love making Mia’s 1-2-3 Easy Tortilla Chips from The Foodie Bar Way.