Container

A container comprising a container body holding contents therein and a lid member for closing an opening of the container body, the container body and the lid member being sealed with each other by an annular seal portion formed along a flanged face of the opening;

• wherein at a specified portion of the annular seal portion, there is provided a detaching seal portion which is detached in response to increase of pressure inside the container body associated with deformation of the container body;
• an outflow channel for discharging the contents extends radially outwards from the detaching seal portion;
• and
• at a position of the flanged face of the container body corresponding to the outflow channel, there is formed an outflow groove sunk toward the bottom of the container body;
• wherein there are provided a pair of auxiliary non-detaching seal portions extending from a portion of the annular seal portion toward the outflow groove;
• each auxiliary non-detaching seal portion of the pair of the auxiliary non-detaching seal portions includes an end;
• the ends of the auxiliary non-detaching seal portions face each other, extend perpendicularly to the radially outward direction of contents flow, and are spaced inward radially from an outer edge of the flanged face of the opening.