Yes, you can dry clean a cashmere sweater, and it is often the preferred way to retain its softness, shape, and longevity. By ensuring that your jumper is cleaned gently, professional dry cleaning lowers the possibility of damage from harsh detergents or incorrect washing methods. Because cashmere is a fragile fabric, even slight mistreatment can cause it to shrink or pill.

Use lukewarm water and a gentle detergent made especially for cashmere or wool if you decide to hand wash. To prevent stretching, lay the jumper flat to dry. However, cashmere sweater dry cleaning by an experienced professional dry cleaner is an excellent choice for the best care and long-term durability.

Original SourcE: https://www.quora.com/Can-I-dry-clean-a-cashmere-sweater/answer/Hello-Laundry