Plain Popcorn Boxes The popcorn boxes have a basic and lightweight style that may be use in movies, coffee shops, bakeries, and other public areas. It’s also suitable for usage at home. It is used to store light snacks such as popcorn. These boxes’ exteriors are printed with food-safe ink. It is safe, non-toxic, and non-hazardous, with good temperature endurance, ecological sustainability, and reduced density.