How to Wash a Blanket or Throw

"How do I wash this blanket?" doesn't have one answer, because a fleece throw, a cotton knit, a wool blanket, and a faux-fur wrap are barely the same object once they hit water. The fibers behave differently, they shrink or pill or felt under different conditions, and the mistake that ruins one is harmless to another. So the honest way to do this is by material: figure out what your blanket is made of, then follow the method for that fiber. The universal rules below cover the rest.

Before anything else, read the care tag. It's the one place that tells you what the blanket is actually made of and what the manufacturer rates it for, and it beats every general rule here. Everything below is the sensible default for when the tag is gone, faded, or silent — it is not a reason to override a tag that says dry-clean-only or names a wash temperature of its own. One more thing to sort out up front: if this is an electric or heated blanket, stop and use the separate method for those. The wiring changes everything — you always unplug and remove the controller first — so see our guide to the best electric blankets for that process rather than washing it like an ordinary throw.

Fleece and Microfiber: Cold, Gentle, and No Fabric Softener

Fleece and microfiber throws are the most popular blankets going, and the most commonly ruined, almost always by two well-meaning mistakes. Wash them in cold water on a gentle cycle with a small amount of mild detergent. Then the rule that matters most: skip the fabric softener entirely.Softener feels like it should make a soft blanket softer, but on synthetics it does the opposite — it leaves a waxy film that coats the fibers, mats them down, and destroys both the plush hand and the moisture-wicking that make fleece worth owning in the first place. A fleece blanket that's gone stiff, flat, or oddly clammy has usually been softener-coated, not worn out.

Drying is the second trap. Synthetic fibers melt and pill under high heat, so dry fleece and microfiber on low heat or air dry them, and pull them out while barely damp rather than baking them. High heat is what turns a smooth throw into a pilled, slightly crunchy one that never quite recovers. Cold wash, no softener, low heat — that's the entire formula, and it keeps a fleece throw plush through years of regular washing.

Cotton and Knits: Watch for Shrinkage

Cotton blankets are forgiving, with one asterisk: knits shrink. A woven cotton blanket can generally take a warm or cold gentle cycle with mild detergent and hold its size fine. A cotton or cotton-blend knit throw — the loose, chunky, sweater-like kind — is the one to baby, because hot water and a hot dryer tighten the loops and shrink it. For knits, stick to cold water and either air dry them or use low heat, and check the size the first time rather than assuming.

Whichever cotton blanket you have, reshape it while it's still damp— smooth it out flat or gently tug it back to its original dimensions before it finishes drying, so it doesn't set into a wrinkled or slightly shrunken shape. Cotton wrinkles more than synthetics, so folding it promptly while warm saves fuss later. It's the same care mindset that keeps a good quilt looking crisp wash after wash: cotton rewards a gentle cycle and a little attention at the drying stage far more than it needs high heat.

Wool and Cashmere: Cold, Flat, and Never Wrung

Wool and cashmere throws are the fragile end of the range, and they punish heat and agitation harder than anything else on this list. Heat plus movement makes wool felt — the fibers lock together permanently into a shrunken, matted mass — so everything about washing wool is about keeping it cold and calm. Hand wash a wool or cashmere throw, or use a dedicated wool or delicate cycle, in cold water with a wool-specific detergent; ordinary detergent can be too harsh for the fibers.

Two hard rules follow, and both matter. Never wring wool. Twisting a wet wool throw to squeeze water out stretches and distorts the fibers, and that distortion doesn't bounce back — press the water out gently between your hands or in a towel instead. And dry it flat, never hanging.Hanging a wet wool throw lets its own water weight pull it long and out of shape, while heat felts it, so lay it out flat on a towel or drying rack, away from direct heat and sun, and reshape it to its proper dimensions while it's still damp. It takes longer than tumbling, but flat drying is the single thing that keeps a wool or cashmere blanket the size and shape you bought it.

Acrylic and Faux Fur: Gentle Cold, Then Bring It Back to Life

Acrylic blankets behave a lot like fleece, because they're also synthetic. Wash them on a cold gentle cycle with mild detergent, skip the softener for the same fiber-coating reason, and dry on low heat— acrylic pills and can lose its shape if it gets too hot, so the low-and-slow approach protects it. It's an easy, durable material as long as you keep the heat down.

Faux fur and chunky knit throws are the ones that look alarming wet and recover beautifully if you're gentle. Wash them on a gentle, cold cycle— on their own, so the pile doesn't catch and mat against a zipper or a rougher fabric — and then air dry them flat.A hot dryer can melt or crisp synthetic faux fur and permanently flatten the pile, so let it dry on its own laid out flat. Once it's dry, the trick that revives it is simple: shake it outand, for faux fur, run your fingers or a soft brush through the pile to lift and separate it back to fluffy. A throw that came out of the wash looking sad almost always comes right back once it's dry and shaken out.

The Rules That Apply to Every Blanket

A handful of rules hold no matter what your blanket is made of. First, the tag wins — read it before you do anything, because it reflects how your specific blanket was built. Second, wash a blanket alone or with like items.A blanket crammed in with towels and jeans can't move freely, and abrasive items pill delicate fabrics. Third, mind the machine size. A throw or twin fits a home washer fine, but a king or oversized blanket often can't move in a standard drum — and a blanket that can't tumble can't get clean, since soap stays trapped in the packed center. If yours can't move freely with room to spare, take it to a large-capacity or laundromat machine. It's the same drum-size logic that governs a bulky comforter, spelled out in our guide to washing a comforter.

Fourth, skip the bleach.It breaks down fibers and dyes over time and does no blanket any favors — treat stains by spot-cleaning instead, blotting from the outside of the mark inward with cool water and a little mild detergent rather than rubbing. Fifth, and it's the one most people rush, dry it fully.A blanket that feels dry on the surface can still hold moisture deep in thick or knitted sections, and trapped damp is how a musty smell or mildew takes hold somewhere you can't see. Give it the extra time before it goes back on the bed or into storage — and when you do put one away for the season, our guide to storing bedding covers keeping it fresh so it comes out ready to use.

As for how often to wash: less than you might think. A blanket under a top sheet or duvet cover only picks up light contact, so every month or two suits most people, and a decorative throw can go longer. Wash it sooner if it's slept under directly, shared with pets, or after an illness or a spill — but let the sheet take the frequent laundering, since over-washing just wears a blanket out faster. And if your blanket is a heavy weighted one, that's its own process entirely; our guide to washing a weighted blanket covers the fill and weight considerations an ordinary throw never raises.