The bottles are gripped around the neck by a clamp, and rapidly turned upside-down by means of a rack and pinion system. The speed of this system enables longer cycles with the same number of clamps. The nozzle penetrates the bottle neck by 70mm; this depth prevents any interference between the injected water and the backflow. The injected water must be sterilized by microfiltration. As an alternative, the water can be ozonized, which will also perform a sterilizing action. The rinsing liquid is recovered in a closed circuit, keeping the machine dry during the normal working conditions. Bottles can also be “seasoned” by recirculating the appropriate product. This means that a bactericidal liquid can be used to completely sterilize the inside of the rinser, using the dummy bottles supplied with the machine.