Packaged food material, stack, and packaged stack

Abstract

A packaged food material includes a first container, a second container, and a food material. In the packaged food material, the opening portion of the first container is not closed. The packaged food material is such that when two or more packaged food materials are stacked, a bottom portion of the first container of one of the packaged food materials is located in the first container of another packaged food material.

What is claimed is: 
     
         1 . A stackable packaged food material, comprising:
 a first container having a cup shape;   a second container stored in the first container; and   a food material sealed in the second container,   wherein an opening portion of the first container is not closed, and   the packaged food material is configured to be stacked such that a bottom portion of the first container of a certain packaged food material is located in the first container of another packaged food material.   
     
     
         2 . The packaged food material according to  claim 1 , wherein the second container includes a container body having a cup shape, and a cover body that closes an opening portion of the container body, and is stored in the first container such that a bottom portion and a sidewall portion of the second container face the bottom portion and a sidewall portion of the first container, respectively. 
     
     
         3 . The packaged food material according to  claim 2 , wherein the cover body includes a cover portion that closes the opening portion of the container body, and a tab portion projecting outward from an edge of the cover portion. 
     
     
         4 . The packaged food material according to  claim 3 , wherein the tab portion has such a length that a distal end passes across the opening portion of the first container when the tab portion is extended toward the opening portion of the first container along the sidewall portion of the first container. 
     
     
         5 . The packaged food material according to  claim 1 , wherein the second container is fixed to the first container. 
     
     
         6 . The packaged food material according to  claim 5 , wherein the second container is locked on the first container. 
     
     
         7 . The packaged food material according to  claim 1 , wherein the second container has barrier properties higher than those of the first container. 
     
     
         8 . A stack including a plurality of the packaged food materials according to  claim 1 , which are stacked such that a bottom portion of the first container of a certain packaged food material is located in the first container of another packaged food material. 
     
     
         9 . A packaged stack including the stack according to  claim 8 , and a packaging material packaging the stack.