The present invention relates to a method of preventing bacterial growth in a beverage dispensing system. The beverage dispensing system comprises a tapping (30) line which is connected at its first end to a tapping cock and has at its opposite second end a tapping line connector (16). The tapping line connector has a tapping valve actuator (18) and defines a first connector surface (32). The method comprises providing a beverage container (12) filled with preferably a carbonated beverage. The beverage container has a container connector (14) defining a second connector surface (38) and an initially sealed container opening. The second connector surface is covered with a bacteriostatic agent (40). The container connector is connectable to the tapping line connector by contacting the first and second connector surfaces with one another and in doing so transferring a part of the bacteriostatic agent from the second connector surface to the first connector surface.
