Blow mold for producing plastic containers, having a base body in the interior of which a body of the container to be produced can be accommodated and the inside wall of which completely surrounds the container that is to be produced, such that the blow mold has a ring for supporting a neck of the container with respect to the blow mold, along with a spacer device protruding inward with respect to the circumferential edge of the ring, for preventing the body of the container from coming in contact with the inside wall of the blow mold in the event of tilting of the container with respect to the blow mold.