How to Wash a Chunky Knit Blanket Without Ruining It

Check the care label first

Every blanket has a care label sewn into the edge or corner. Read it before you do anything else. The label tells you the fiber content and the washing method the maker tested. When in doubt, follow the label over any general advice.

If the label is gone or unreadable, treat the blanket like wool. Cold water, gentle cycle, flat dry. That approach won't damage any natural fiber and won't destroy most acrylic either.

Machine washing: what works and what doesn't

Acrylic chunky knit

Use cold water on a gentle or delicate cycle. Put the blanket in a large mesh laundry bag. This protects the loops from snagging on the drum or zipper of another item. Don't wash it with jeans, towels, or anything with hooks. High-friction items cause pilling.

Wool chunky knit

Wool can shrink in warm water and felt (permanently mat) in an agitation wash. If your machine has a wool or hand-wash cycle, use it. If not, hand wash instead. Cold water only. Use a wool-safe detergent like Woolite or a similar product with no enzymes. Enzymes break down wool protein.

Cotton chunky knit

Cotton tolerates machine washing better than wool. Use a gentle cycle with cold or warm water. A mesh bag is still a good idea for chunky knit because the large loops can catch on things. Avoid hot water which causes cotton to shrink.

Hand washing step by step

Hand washing is the safest method for any chunky knit blanket, especially wool.

1. Fill a bathtub or large sink with cold water.
2. Add a small amount of gentle detergent. Mix it into the water before adding the blanket.
3. Submerge the blanket and gently press it down. Don't wring, twist, or scrub. Just press and release.
4. Let it soak for 10 to 15 minutes.
5. Drain the tub and refill with clean cold water to rinse. Repeat until no soap remains.
6. Press out excess water against the side of the tub. Never wring.
7. Roll the blanket in clean dry towels to absorb more water.
8. Lay flat to dry (see below).

Drying: flat dry vs tumble dry

Flat drying is the safest method for chunky knit. Lay the blanket on a clean dry towel on the floor or a large drying rack. Reshape the loops gently with your hands while the blanket is still wet. Let it dry completely before folding.

Flat drying takes 4 to 12 hours depending on the fiber weight and humidity. Flip the blanket once halfway through to dry both sides evenly.

Never hang a wet chunky knit blanket. The loops stretch under the weight of the water and won't bounce back. A stretched blanket never looks the same.

Tumble drying: acrylic and cotton can go in the dryer on low heat only. Check after 20 minutes. Remove while still slightly damp and lay flat to finish. Wool should never go in the dryer. High heat causes felting and shrinkage.

How to remove pills

Pilling happens when loose fibers tangle into small balls on the surface. Acrylic pills faster than wool or cotton. Cheap acrylic can pill after the first wash.

To remove pills, use a fabric shaver. Run it in small circles over the surface. Empty the collection chamber often so it keeps cutting cleanly. A sweater stone also works and is gentler on delicate wool.

Don't pull pills off by hand. It breaks the nearby fibers and creates a bare patch. Use a tool designed for it.

Prevent future pilling by using a mesh laundry bag, cold water, and a short gentle cycle. High heat and heavy agitation are the main causes.

Storage tips

Store your blanket clean and dry. Moths are attracted to protein fibers like wool, cashmere, and alpaca. A dirty wool blanket is more at risk. Always wash before long-term storage.

Fold loosely and place in a breathable cotton storage bag. Avoid plastic bags. They trap moisture and create conditions for mildew. Add cedar blocks or lavender sachets to deter moths.

Don't stack heavy items on top. The loops in chunky knit blankets compress under weight and can lose their texture over time.

Common washing questions