The lid closing work does not take time and labor, and leakage of juice and drying of food materials are easily prevented. The container body 1 has two first body side parts 6 a along a direction T orthogonal to an axial direction S of the hinge 3 in a plan view, the lid 2 has a first lid side part 6 b along a direction T orthogonal to the axial direction S of the hinge 3 in a plan view, The dimension of the lid fitting part 23 in the first lid side part 6 b in the vertical direction is increased from the first lid corner part 7 b toward the second lid corner part 8 B. Figure 1

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