There are two types of concave bottom multi-grid products, three types, four types, five types of seven products, mainly used for sushi packages, Chinese packages, Western packages and other packages and dining. The partition design meets the needs of different ingredients, so that the food can maintain its individual delicacy, not cross-flavor, and be hot-pressed in one, which can meet the needs of dishes with a little soup. The concave bottom design makes the product stackable, guarantees the stability of the product in the transportation process, and reduces the storage volume of the product. Supporting personalized printing customization, we can use two kinds of paper, Bullock card and white card, to enhance the sense of product grade.