Silver tarnish occurs due to the oxidation of the surface layer of the silver, which can be eliminated through the cavitation bubbles produced by the ultrasonic cleaning process. A specialized silver cleaning solution is used to break down tarnish and other pollutants on the surface of the silver. The ultrasonic cleaning process is highly efficient and can remove tarnish in just a few minutes. However, it is important to note that the process can also remove any patina or antique finish on the silver. As a result, it should be used with caution on valuable or rare silver pieces.