Receptacle for cooking food capable of withstanding both the low temperatures of the freezer and high temperatures of ovens, has a hermetic sealing which includes two sealing devices

摘要

The receptacle comprises an elastic lid (2) of silicone and a rigid base (3). It also has a hermetic sealing which includes two sealing devices. An inner device with regard to the base, which performs the sealing when the lid expands due to the heating of the receptacle and an outer device with regard to the base which performs the sealing when the lid shrinks due to the cooling of the receptacle. The expansion and shrinkage coefficient of the base is less than that of the lid. The inner hermetic sealing device comprises a flange (4) which projects inwardly from the lid. The flange presses against the inner side (3a) of the side wall (3b) of the base when the receptacle is heated.