Container for microwave oven

A microwave container comprising:

• a container main body having an opening in an upper portion thereof;
• a flange part formed to extend outwardly from the opening of the container main body;
• and
• a heat-seal part formed over the entire periphery of an upper surface of the flange part and heat-sealed to a film-shaped lid member for sealing the opening, wherein
• the heat-seal part has a first heat-seal part and a second heat-seal part,
• the first heat-seal part is a vapor-discharging part configured to break the heat seal of the lid member to discharge vapor when vapor generated in the container main body reaches a predetermined pressure, and the second heat-seal part is a part other than the vapor-discharging part,
• the vapor-discharging part is formed by a V-shaped portion widely opened to the outside in plan view, and
• a seal strength of the vapor-discharging part is weakened toward a tip located inside the V-shaped portion.

A microwave container comprising:

• a container main body having an opening in an upper portion thereof;
• a flange part formed to extend outwardly from the opening of the container main body;
• and
• a heat-seal part formed over the entire periphery of an upper surface of the flange part and protruded upward, and heat-sealed on a film-shaped lid member for sealing the opening, wherein
• the heat-seal part includes a first heat-seal part and a second heat-seal part constituting the entire periphery of the flange part,
• the first heat-seal part is a part for discharging vapor generated in the container main body by breaking the heat seal with the lid member when the vapor reaches a predetermined pressure, and the second heat-seal part is a part other than the first heat-seal part, and is higher than the first heat-seal part with respect to a protruding height from the upper surface of the flange part.