Apparatus for treating plastic preforms, having a heating device for heating the plastic preforms, having forming devices for forming the plastic preforms into plastic containers, and having a sterilization device for sterilizing the plastic preforms,
wherein the sterilization device has at least one first sterilization unit which has a rotatable transport carrier and a plurality of holding devices arranged on this transport carrier for holding the plastic preforms, as well as a plurality of first application devices for acting upon the plastic preforms, and the sterilization device has a second sterilization unit.