A device for the integrated production and filling of containers and a method for cleaning and/or disinfecting at least the mold of at least one molding and filling station of the device. During a cleaning and/or disinfecting operation of the device, at least the inside of the mold is cleaned and/or disinfected with at least one cleaning and/or disinfecting agent by at least one cleaning element. During the cleaning and/or disinfecting operation, the at least one mold is opened and closed at least once, preferably many times and/or the plunger is moved at least once, preferably many times, between its initial position and end position.