The present application discloses an oven that comprises a lower housing assembly, an upper housing assembly, and a retaining assembly. The upper housing assembly is disposed above the lower housing assembly, the upper housing assembly is capable of opening and closing relative to the lower housing assembly and is capable of forming a working cavity when closed with the lower housing assembly, the upper housing assembly comprises an upper housing front plate. The retaining assembly is fixedly disposed on the upper housing front plate to prevent substantial deformation of the upper housing assembly during heating.

The present application discloses an oven that comprises a lower housing assembly, an upper housing assembly, and a retaining assembly. The upper housing assembly is disposed above the lower housing assembly, the upper housing assembly is capable of opening and closing relative to the lower housing assembly and is capable of forming a working cavity when closed with the lower housing assembly, the upper housing assembly comprises an upper housing front plate. The retaining assembly is fixedly disposed on the upper housing front plate to prevent substantial deformation of the upper housing assembly during heating.