Disclosed herein is a food box that includes an outer box and an inner bag located within the outer box configured to preserve food contents within the inner bag by preventing air from entering into the inner bag. The cereal box further includes an opening in the inner bag and a cap configured to seal the opening. The cap is attachable and unattachable to the opening. Air is prevented from entering into the inner bag through the opening when the cap is attached. The outer box includes a perforated portion that is removable from the outer box, and when the removable portion is removed, the cap is exposed. Further included herein is a method of forming the food box.
