Why Collectors, Clean Freaks, and Makeup Lovers Swear by This Tool

If you've never heard of this handy cleaning tool, you'll be thankful that you have now. An ultrasonic cleaner cleans with high-frequency sound waves that create microscopic bubbles. The bubbles pop and release dirt and oils from all kinds of items that can be both difficult and frustrating to clean. It’s as simple as placing your items in the bath and turning the machine on; no scrubbing required. (If you’ve taken your ring to the jeweler to be cleaned, this is the same tool they use.)

Scott Schrader, a cleaning expert at CottageCare, notes that newer models of home machines are lower-priced and less powerful than those used by professionals, but they utilize the same technology. “For home cleaning, they offer precise cleaning solutions. They're not for big messes, but work well on detailed messes.”

If you love restoring shine to your favorite things or tackling stubborn buildup without harsh scrubbing, it’s a handy tool to have on hand. And with so many clever ways to use it, you might find yourself reaching for it more often than you think.

The Basics of an Ultrasonic Cleaner

You can use hot water and a single drop of dish soap in an ultrasonic cleaner, but many recommend using a specialized cleaning solution for best results. If you use dish soap, use distilled water, and always refer to the manufacturer’s instructions.

Rhonda Wilson, lead cleaner at FreshSpace Cleaning, uses an ultrasonic cleaner in her own home. She says she loves wearing accessories but dreads cleaning them. “With an ultrasonic cleaner, I turn it on and walk away. I can do something else while it’s soaking,” she says. "The sound waves can get into each nook deeper than a toothbrush can." When she’s done, she rinses the items and dries them with a microfiber cloth.

9 Surprising Things to Clean in an Ultrasonic Cleaner

Read on to discover our list of nine unexpected items that can be cleaned in an ultrasonic cleaning machine. This versatile tool can handle more than you think.

1. Glasses and Sunglasses

Skip the microfiber cloth and lens spray. An ultrasonic cleaner gently removes smudges, oil, and makeup—even around the nose pads and hinges—without scratching your lenses. Drop your glasses in and hit the "on" button.

2. Makeup Brushes and Tools

While not all bristles can handle the vibration, silicone tools, brush holders, and even tweezers come out looking brand new. Just be sure to rinse and dry thoroughly.

3. Razors and Blades

Give your reusable razors a second life by removing buildup and gunk from the blades and housing. This not only keeps them cleaner but can help extend their lifespan.

4. Keys and Keychains

Ever really looked at your keyring? An ultrasonic bath lifts away the grime that collects from everyday handling, especially in textured or engraved metal.

5. Dental Gear

Retainers, dental trays, and toothbrushes are magnets for germs. A quick cycle in the cleaner can help remove bacteria, plaque, and stubborn residue. Avoid using hot water or harsh cleaning solutions on these items, though.

6. Collectibles

Collectors appreciate ultrasonic cleaners for refreshing old trinkets, coins, pins, and other small keepsakes. Depending on what you hope to clean, it’s a good idea to conduct a small test to ensure the vibrations don’t damage the finish.

7. Watch Bands

Metal and silicone watch bands get an instant refresh with the help of an ultrasonic cleaner, especially in tight joints and links where dirt can hide. Remove the watch face first, unless it’s waterproof, and avoid cleaning leather bands in an ultrasonic cleaner.

8. Hardware and Small Tools

Screws, drill bits, sewing machine parts—anything that’s tricky to scrub could be considered for ultrasonic cleaning. Some mechanics even use ultrasonic cleaners to clean parts in their shops. This is also a good way to clean items like bike chains.

9. Bud Vases

Narrow-necked or intricately shaped vases can be hard to clean by hand. Just submerge and let the ultrasonic waves do the work.

What Not to Put in an Ultrasonic Cleaner

Not everything is suitable for an ultrasonic cleaner. Avoid using it on porous materials (such as pearls or opals), wood, leather, or any item with glued surfaces or moving parts. Never submerge electronics. Always check the item’s care guidelines before cleaning.