Cooking device

A cooking apparatus comprising:

• a main body;
• a cooking chamber inside the main body;
• door including:
• a door frame,
• a rear frame,
• an exterior panel, and
• a grounding member integrally formed with the exterior panel and including a first grounding part, a second grounding part, and bending guide grooves at a bending position between the first grounding part and the second grounding part and configured so that the second grounding part is bendable from the first grounding part at the bending position,
• wherein
• the door frame, the rear frame, the exterior panel, and the grounding member are configured so that the rear frame is couplable to a rear of the door frame, the exterior panel is couplable to a front of the door frame with the first grounding part extending rearward and the second grounding part being bendable from the first grounding part at the bending position to be in contact the rear frame so that the exterior panel is grounded to the rear frame, to thereby provide the door in an assembled state configured to open and close the cooking chamber, and
• with the door in the assembled state configured to open and close the cooking chamber, the rear frame is configured to prevent leakage of electromagnetic waves from inside the cooking chamber through the door.