Not everything that comes out of the washer belongs in the dryer. Even if it feels faster or more convenient, tossing certain fabrics and materials in there can ruin them-or worse, create a fire hazard. High heat and tumbling can shrink, melt, or weaken fibers that aren't built to handle it.
Some items might look fine after the first few cycles but fall apart much faster than they should. If you've been wondering why your clothes, bedding, or towels don't last, this is probably why.
Athletic Wear
Performance fabrics like spandex, nylon, and polyester aren't meant for high heat. The dryer can warp the elastic, break down fibers, and make clothes lose their stretch. Over time, that's why your leggings and sports bras stop fitting the same way. Air drying them keeps their shape and helps prevent that permanent "sweaty gear" smell from setting in.
Bath Mats with Rubber Backing
That non-slip rubber backing is great for safety, but not for your dryer. The heat breaks down the rubber and causes it to crack or flake off. Eventually, it can even melt inside the dryer drum. Instead, hang bath mats outside or over the shower rod-rubber will stay intact, and the fabric will still dry thoroughly.
Bras
Bras are delicate and loaded with elastic, which the dryer destroys fast. The heat weakens the fabric and warps the underwire or cups, so they lose support long before they should. Laying them flat or hanging them to air dry might take longer, but it'll keep them fitting comfortably for years instead of months.
Shoes
Most shoes can't handle the heat or tumbling. The dryer can melt glue, warp soles, and cause fabric or leather to separate. Even sneakers that seem safe can lose their shape quickly. If you need to dry shoes fast, stuff them with newspaper or use a fan-both pull out moisture without the damage.
Anything with Foam
That includes pillows, mattress toppers, and padded cushions. Foam breaks down quickly in the dryer, crumbling or melting from the heat. It can even catch fire in extreme cases. These should be air-dried completely flat in a well-ventilated area to avoid mildew and keep their shape intact.
Silk or Satin Items
Silk and satin can't tolerate high heat without shrinking or losing their smooth finish. The dryer roughs up the fibers, leaving them dull and stiff instead of soft and glossy. Let them air dry on a hanger or towel instead-it takes longer but keeps the fabric beautiful and wearable for years.
Wool Sweaters
Wool and dryers do not mix. The heat causes the fibers to tighten and shrink, turning your sweater into a toddler-sized version in one cycle. Lay wool flat on a towel and reshape it as it dries to keep the fit and texture intact. It'll hold its quality and won't pill as quickly, either.
Delicate Curtains or Sheers
Light fabrics like polyester sheers or lace curtains can twist, tear, or melt in the dryer. Even low heat cycles can cause wrinkling that's almost impossible to fix. Hang them up to dry instead-the air movement actually helps them stay wrinkle-free and keeps their threads from pulling apart.
Towels with Decorative Trim
If your towels have fringe, embroidery, or ribbon details, skip the dryer. The high heat frays stitching and can cause decorative pieces to shrink unevenly. Air drying or using a low tumble cycle helps preserve both the function and appearance of your nicer towels.
Items with Zippers or Metal Hardware
Zippers, buttons, and hooks can get dangerously hot in the dryer and damage other clothes. They can snag delicate fabrics, scrape the drum, or even start small sparks. Drying on a rack or line drying prevents that-and helps keep your hardware from tarnishing or warping over time.
*This article was developed with AI-powered tools and has been carefully reviewed by our editors.
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