A microwave oven includes a housing, which surrounds an oven space and has a flange configured to delimit a loading opening for the oven space. A door closes off the oven space and is disposed movably on the housing. Disposed on the door is a microwave shield, which is disposed at a distance in front of the flange, when the door is closed and is adjusted by an adjustment facility such that a position of the microwave shield can be set in three spatial directions relative to the flange.