How to Wash Thrifted Clothes Before You Wear Them

You found a great wool blazer for $9, carried it home, and now it smells like a church basement and someone else's perfume. Knowing how to wash thrifted clothes properly is the difference between a find you wear next week and one that sits in a bag by the door because you cannot get the smell out. The good news is that most secondhand pieces need less effort than people assume, as long as you sort them first and pick the right method for each fabric.

I wash every single thing I buy secondhand before it touches my closet. Not because thrift stores are dirty, but because I have no idea where that sweater has been stored for the last two years.

Why you should wash thrifted clothes before wearing them

Most thrift stores do not launder donations. They sort, tag, and hang. A few large chains steam some items, but steaming removes wrinkles, not odors or residue. That means the piece arrives carrying whatever it picked up in a donor's closet, a donation bin, and a back room.

The realistic risks are boring ones: dust, old fabric softener, perfume, cigarette smoke, mildew from damp storage, and occasionally clothes moths in wool. Bed bugs get mentioned a lot online, and they are rare in clothing, but a hot dryer cycle handles them anyway. You are mostly washing to get rid of smell and to find out whether a stain is permanent before you commit to wearing the piece.

Sort before anything goes near water

Check the care label first. If it is missing, which happens with older pieces, use the fiber and the construction to decide. Then split your haul into four piles.

• Machine washable: cotton tees, jeans, polyester blouses, most knits made from synthetics. These go straight into the machine.
• Hand wash: wool sweaters, cashmere, silk, anything with beading, and delicate vintage pieces from before the 1980s.
• Dry clean or spot clean: structured blazers, coats with shoulder pads, leather, suede, and anything with a label that says dry clean only and means it.
• Quarantine: anything that smells musty, has holes that look chewed, or came from a bin rather than a rack. These go into a sealed bag until you deal with them.

Before washing, run your fingers along the seams and pockets. I have found receipts, a lipstick, and once a single earring. A lipstick in the washer can ruin a full load.

How to wash thrifted clothes by fabric

Cotton, denim, and synthetics

Wash on the warmest setting the label allows, usually 40 C (104 F) for cotton and 30 C (86 F) for synthetics. Add half a cup of white vinegar to the rinse compartment. Vinegar breaks down old detergent and softener buildup, which is often what holds the smell. Turn jeans inside out so the color stays even. Our guide to thrifting jeans that fit covers what to check before you buy them.

Wool and cashmere

Fill a basin with cool water and a teaspoon of wool wash. Submerge the sweater, press gently for a minute, then let it soak for 15 to 20 minutes. Rinse in cool water at the same temperature, because sudden temperature changes are what cause felting. Squeeze, do not wring. Roll it in a towel and dry it flat. If you want the full method, see how to hand wash a wool sweater.

Silk and vintage delicates

Use cold water and a gentle detergent with no enzymes, since enzymes digest protein fibers like silk. Keep the soak short, about 5 minutes. Test colorfastness first by pressing a damp white cloth against an inside seam. If dye transfers, do not soak it; spot clean only.

Getting rid of thrift store smell

That particular smell is usually a blend of dust, old perfume, and mild mildew. One wash does not always fix it. Here is what works, in order of effort.

1. Air it out first. Hang the item outside or near an open window for 24 hours. Sunlight and moving air remove a surprising amount of odor on their own.
2. Vinegar soak. For washables, soak for an hour in cool water with one cup of white vinegar per gallon before the normal wash.
3. Baking soda for structured pieces. Seal a blazer or bag in a large plastic bag with an open box of baking soda for 48 hours. It will not fix everything, but it pulls out a lot of stale odor.
4. Freezer for wool. Two days in a sealed bag in the freezer kills moth eggs and larvae without water.

If the smell is still there after two rounds, it is probably mildew in the fibers or padding. At that point, a professional cleaner costs $10 to $20 per piece, which is worth it for a great coat and not worth it for a $4 tee.

Where I disagree with the "hot wash everything" rule

A lot of thrifting advice says to wash every find on the hottest cycle and dry it on high heat to be safe. I understand the logic, and it will kill almost anything living in the fabric. It will also shrink cotton by up to 5 percent, fade dyes, melt some synthetics, and felt wool into something a child could wear.

Heat is a tool for specific problems, not a default. If you suspect pests, use the dryer on high for 30 minutes on a dry garment, which does the job without soaking it. For everything else, the care label temperature plus vinegar handles smell and residue without destroying the fit you bought the piece for. Losing a size because of a careless wash defeats the point of checking secondhand clothes before buying.

Stains, yellowing, and when to give up

Old stains on thrifted clothes are tricky because you do not know what caused them or how long they have been there. Start with the mildest option and work up.

• Soak whites and light colors in an oxygen bleach solution for 6 to 8 hours. This handles most yellowing and dingy collars.
• Rub dish soap into greasy marks before washing.
• Use a stain stick on the inside of the fabric, not the front, so you push the stain out instead of in.

If a stain survives two treatments and a full wash, accept it or move on. Never put a stained item in the dryer until the stain is gone, because heat sets it permanently.

Frequently asked questions

Do you need to wash thrifted clothes before wearing them?

Yes, it is a good habit. Most thrift stores do not launder donations, so items can carry dust, perfume, smoke, or old detergent residue. A wash also lets you find stains or damage before you plan an outfit around the piece.

How do you get the smell out of thrift store clothes?

Air the item outside for a day, then soak washables in cool water with white vinegar before a regular cycle. For structured pieces that cannot be washed, seal them in a bag with baking soda for two days. Stubborn musty smells often need a professional clean.

Can you wash dry clean only thrift finds at home?

Sometimes. Many items labeled dry clean only are polyester or cotton and survive a cold hand wash. Structured blazers, leather, suede, and pieces with interfacing are the exception, because water can warp the shape. When in doubt, test a hidden seam first.