Getting the Dryer to Do Its Job

Start with the lint screen, then check the vent, and only then blame the dryer. When my dryer started needing two cycles to dry a load of towels, I assumed it was dying. It was seven years old and I had already priced replacements. What it actually had was a vent duct packed most of the way shut with lint, thirty feet of it running through a crawlspace, and clearing that took an afternoon and turned a two cycle load back into a fifty minute one.

Drying is the part of laundry where the machine does the most work and gets the least attention. Here is what I check and how I decide what goes in the dryer at all.

The maintenance that actually matters

Clean the lint screen every single load. Not most loads. Every one. A screen that is even a third covered restricts airflow enough to add time and heat, and heat is what wears out clothing in a dryer.

Wash the lint screen a few times a year. Dryer sheets and fabric softener leave an invisible film on the mesh that blocks air even when the screen looks clean. Run water over it. If the water pools on the surface instead of passing straight through, scrub it with a soft brush and a drop of dish soap, rinse, and let it dry fully before it goes back in.

Check the outside vent flap. Go outside while the dryer is running and put your hand near the exhaust. You should feel steady warm air pushing out and the flap should be open. If the flap is stuck, painted shut, or blocked by a bird nest, everything upstream backs up.

Pull the duct once a year. Disconnect it at the back of the machine and clear it out. Rigid or semi rigid metal duct is much better than the flexible foil accordion type, which sags and catches lint in every ripple. If yours is the foil kind and you can replace it, do.

Vacuum behind and under the machine. Lint accumulates there and it is genuinely flammable.

A dryer that suddenly takes two cycles is almost never a broken dryer. It is a blocked airflow path, and the fix costs an afternoon rather than several hundred dollars.

Heat settings, and why lower is usually better

High heat does not dry clothes meaningfully faster in most machines, because the limiting factor is airflow carrying moisture away, not temperature. What high heat reliably does is shrink cotton, cook elastic, and set wrinkles.

My defaults:

• Medium for towels, sheets, and everyday cotton.
• Low for anything with stretch, anything printed, and anything I care about.
• Air fluff, no heat for pillows, and for shaking dust out of something that does not need washing.
• High almost never.

If your dryer has a moisture sensor cycle, use it instead of a timed cycle. It stops when the load is dry rather than running to a fixed number, which saves both fabric and electricity. Timed drying is how people over dry without realizing it.

What I never put in the dryer

• Anything with elastic I want to keep working. Bras, swimwear, fitted sheets I am fond of, waistbands on good pants.
• Wool and cashmere. Heat and tumbling together are what felt wool. Flat drying on a towel is the only safe route.
• Anything with a rubber or plastic backing. Bath mats with rubber grip, some shower curtains. The backing cracks and then flakes off inside the drum.
• Silk, linen I want to stay long, and anything already stained.

Air drying without the house smelling damp

I dry a fair amount of laundry on a rack indoors during the cold months. Done carelessly, that puts a lot of moisture into a closed house and you end up with condensation on the windows and a musty smell in the room.

What works:

• Spin it hard first. The highest spin setting your machine and fabric allow removes far more water than any amount of hanging time. Wet clothes going onto a rack is the main cause of the damp room problem.
• Give each piece air on both sides. Two garments touching on a rack will still be damp in that spot the next morning. Space costs nothing.
• Put the rack in the room with the best airflow, and crack a window or run a fan. Moving air matters more than warm air.
• Take things down when they are dry, not when you remember. Fabric left on a rack for two days collects dust and picks up whatever the room smells like.

Outdoors, a line is faster than most people expect on a breezy day even when it is cool, because wind does the work. Sunlight also bleaches out some stains on whites, which is free and worth using. It will fade colors, so I hang colored things inside out or in shade.

Wrinkles, without an iron

I own an iron and I use it maybe four times a year. Almost everything else is handled by timing.

Pull the load the moment the cycle ends. Wrinkles set as fabric cools in a compressed pile, so the difference between unloading at the beep and unloading forty minutes later is enormous. If I cannot be there, I run the tumble without heat refresh cycle when I get back, which loosens most of it.

Shake each item out as it comes off the drum and either hang it or fold it right then. Shirts on hangers straight from a warm dryer come out nearly flat.

For the occasional stubborn crease, hang the item in the bathroom during a hot shower. It is slower than an iron but it requires nothing of me.

The short version

Clean the screen every load, wash the screen a few times a year, clear the duct annually, and stop using high heat. Those four things will make an average dryer act like a better one, and they will keep the clothes going through it in usable shape a lot longer.