Certain wool garments can safely be dried in a tumble dryer without the item shrinking. ... If your garment does not say Tumble Dry, it is best to flat dry your wool garment. You may also notice that your wool garment's sew-in label says Machine Wash.

Does drying wool ruin it?

"Washing at home is actually better for wool knits compared to dry cleaning, which uses harsh chemicals that can damage the fabric over time," says Gwen Whiting, co-founder of The Laundress. ... According to the National Cleaning Association, putting wool in the dryer reverts it to its natural form.

Can you dry 100% wool?

To avoid shrinking, don't put wool clothing in the dryer. Instead, lay flat to dry using the tips from the hand wash section above. When ironing a wool sweater, use the coolest setting and lay a thin cloth on top of the garment.