Oven

An oven, comprising:

• a base, including a bottom plate and a plurality of side plates that are connected to the bottom plate and form an upper accommodating recess together with the bottom plate;
• a foldable oven body, including a plurality of wall plates, the foldable oven body being manipulated to be transformable between an unfolded configuration and a folded configuration, when in the unfolded configuration, the plurality of wall plates collectively forming a baking space and bottom sides of the plurality of wall plates being detachably inserted into the upper accommodating recess;
• a cap, including a top plate that concavely forms a heating recess, the heating recess having a recess surface;
• a heating device, provided inside the cap and located on an opposite side of the recess surface of the heating recess;
• wherein, when the foldable oven body is in the unfolded configuration, the cap detachably covers top sides of the plurality of wall plates, and the heating device faces the baking space;
• heat generated by the heating device heats the baking space and the recess surface of the heating recess.