The invention relates to an apparatus for heating moldings, in particular dental ceramic moldings, with the aid of microwaves or a magnetic field, the apparatus having a susceptor surrounding the molding, in particular according to the type of a container that is closed, said susceptor absorbing microwave radiation or being heated by a magnetic field and emitting heat to the molding. Further, a shielding for electrical and/or magnetic fields is arranged in the path between the microwave oven or the induction coil and the molding, in particular at the inner wall of the susceptor.
