Steam cleaning machine : 2L steam jewelry cleaning machine is more professional and efficient. Can clean all kinds of gold and silver jewelry and other valuables. No damage will be done during cleaning. Easy to use : When the pressure indicator lights up, the steam temperature can reach 135 . It can penetrate small gaps and holes, clean the grease and adhesion on the jewelry surface, and save water efficiently. Easy to operate and safer to use, this is a professional jewelry cleaner.