CONTAINER, FROZEN MATERIAL PACKAGING BODY, AND METHOD OF MANUFACTURING PACKING BODY

摘要

[PROBLEMS] To provide a container not deformed nor burst even if contents an d gas in the container is inflated due to a difference in the temperature of a frozen material packaging body in molding and thereafter and also capable of performing sanitary supervision of the contents. [MEANS FOR SOLVING PROBLEMS ] A vent port covered with a biologically impermeable and gas permeable filter material is formed at least at a part of the container.