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Tossing a few ice cubes into the dryer: what it’s for and why everyone around the world is doing it

It’s 7:52 a.m. You grab your favorite shirt from the laundry basket, hold it up, and your stomach drops. Wrinkles everywhere. The iron is cold. You’ve got eight minutes before you walk out the door.

That’s the moment millions of people around the world are quietly reaching for something that sounds completely wrong for the job: a few ice cubes, straight from the freezer, tossed right into the dryer with the shirt.

It sounds like a prank. It’s actually one of the biggest laundry tricks on the internet right now, and the companies that make and fix your appliances are the ones backing it.

Shutterstock @franz12
Shutterstock @franz12

Why the pros are backing it

This isn’t a TikTok rumor that spread and died. Sears Home Services lists it as one of their top three dryer tricks on their official appliance blog. Good Morning America aired a before-and-after test on it and called the trick a lifesaver for parents of uniform-wearing kids. Over at Apartment Therapy, writer Shifrah Combiths tried it on a wrinkled dress and said her clothes came out noticeably smoother after one short cycle.

Laundry experts say the same. Rechelle Balanzat, who runs the New York laundry service Juliette, told Homes & Gardens the trick is her go-to when there’s no time for an iron. Ken Doty, a cleaning pro quoted in Top Ten Reviews, calls tossing an ice cube in with your clothes a great way to steam wrinkles out.

The strangest part isn’t that it works. It’s who’s doing it. Hotel housekeepers use it to rescue outfits after long flights. Flight attendants swear by it in TikTok threads watched by millions. ABC News even showed a mom rescue her kids’ school uniforms in under 10 minutes flat.

So why would anyone trust ice, of all things, inside a hot dryer? Your appliance isn’t broken. Your clothes aren’t delicate. It’s the opposite of everything a dryer is supposed to do, which is get water out of fabric, not put more in.

But if you could peek inside that drum while it’s running, something odd would be happening. You can’t see it with your eyes. Your shirt is actually changing at a level you’d need a microscope to catch. And it isn’t the ice doing the work. It’s what the ice turns into, and what that forces your fabric to do that nothing else, not a spray bottle, not a dryer sheet, not even a damp towel, can match.

What’s really going on inside your shirt

The real reason this works comes down to something nobody ever told you about wrinkles. The threads in your cotton shirt stick to each other through thousands of tiny, invisible grip points. Mark Lorch, a chemistry professor at the University of Hull in the UK, explained in Science Focus that when your shirt sits scrunched up overnight, those grips let go and reattach in the shape of the fold. The cloth isn’t just bent out of shape. It’s actually re-glued in the wrong spot on the inside.

The fix, step by step

To unstick that invisible glue, you need two things at the same time: a little moisture to loosen the grip, and heat to let the fibers slide smooth again. That’s exactly what a few ice cubes pull off in a hot dryer. They melt into water, the heat turns the water into steam, and the drum tumbles the clothes smooth.

  1. Grab two or three ice cubes from the freezer. Just three. Not a tray.
  2. Toss them in with no more than two or three wrinkled items. More and the clothes can’t tumble enough for the steam to reach every fold.
  3. Set the dryer to its highest heat.
  4. Run it for about 10 minutes.
  5. Pull the clothes out right away and hang them. If they sit warm in the drum, new wrinkles set right back in.
Shutterstock @Oleg Romanko
Shutterstock @Oleg Romanko

What not to toss in with the ice

A few honest cautions. This trick works best on light cotton shirts, T-shirts, blouses, pajamas, and cotton blends. Skip it for silk, wool, rayon, leather, suede, anything with sequins or beads, and anything marked dry-clean only. Science ABC warns that steam can damage leather, suede, and waxed fabric, and Homes & Gardens notes that beads and sequins can snap off and wreck the dryer itself.

It also won’t rescue bed sheets, heavy denim, or deep set-in creases. Those still need an iron. And an appliance expert quoted in Ideal Home says don’t do this every single wash, because the extra moisture can slowly rust the inside of your dryer over time.

One last thing nobody warns you about. The cubes rattle loudly for the first minute until they melt. Don’t panic and open the door. That’s just the sound of your 10-minute shortcut, getting to work.


Sources: (1) Sears Home Services; (2) Good Morning America; (3) Apartment Therapy; (4) Homes & Gardens; (5) Top Ten Reviews; (6) Science Focus; (7) Science ABC; (8) Ideal Home.