Next, place your jewelry into the cleaner's cleaning basket. Be sure to not overfill, the items shouldn't touch each other. When you're ready, turn on the cleaner. The cleaning time can be from 2 to 20 minutes based on the manufacturer's instructions. After it's done, carefully remove the items and clean them with a soft brush if necessary, then rinse and dry. That's about it. And remember, not all jewelry is suitable for ultrasonic cleaners, some gemstones like opal or pearl can be damaged.