Application at this level helps maintain a 0.1 to 0.4 ppm residual ozone level at the time of bottling. This provides an additional safety factor because the bottles can be disinfected and sanitized while filling it with product. Water charged with ozone is also suitable for rinsing bottles and cleaning and disinfecting production equipment. This reduces the potential for bacterial growth in unchlorinated water found within the distribution system. Many plants have started incorporating an ozonated cap and bottle rinsing system.
Ozone is particularly effective when used in conjunction with other water treatment processes.
By using reverse osmosis and nanofiltration or ultrafiltration, organic precursors and inorganics such as bromide, can be removed from water before ozone is used. Unlike other chemicals, there is no natural resource to tap for ozone. It is created using an ozone generator. The two electrodes are separated by an air gap. A dielectric material is inserted in the gap with sufficient voltage potential existing between the two electrodes to cause current to flow through the dielectric material and the gas.