Blow moulding machine with cleaning system

Apparatus for transforming plastic preforms into containers, comprising:

• at least one blow mould which forms a cavity inside which said plastic preforms can be transformed into containers;
• a pressure application device for applying a medium to the plastic preforms in order to expand said plastic performs against an inner wall of the blow mould delimiting the cavity;
• a stretching rod for stretching the plastic preforms in a longitudinal direction thereof, the stretching rod having an end section pointing towards a bottom of the containers;
• and
• a cleaning or sterilization device, the cleaning device including at least one outlet opening for a cleaning or sterilizing medium, said at least one outlet opening including an outlet opening arranged in said end section of the stretching rod and at least at times inside the blow mould, wherein the cleaning or sterilizing device is an UV emitter or electron emitter.