The "false bottles" in question are a special mechanism which, by simulating the presence of a bottle, allows a circuit to be created that is closed to the washing fluid.
In addition, this principle allows for full internal and external cleaning of the tip of the filling spout.
During bottling, the false bottles are arranged in a recessed position so as to allow the filling spouts to drop, penetrate into the bottle and fill it.
When washing is required, the false bottles are opened and positioned over each filling spout, taking up the space occupied by the bottles during bottling.
The path taken by the fluid guarantees perfect cleaning of all parts of the bottling machine, while the forming of a closed circuit also allows for back-washing, unlike open washing systems in which it is not possible to invert the direction of the washing liquid.
The washing and/or sterilization of a single piece must be performed after each use. Sterilization can be performed using steam, hot water or an aqueous solution containing acid particles (peracetic acid, ozone etc.).