How to Soften Cashmere

Cashmere is naturally one of the softest fibers in the world — but it can feel stiff or slightly rough after washing, storage, or with age. Here's how to restore and maintain cashmere's signature softness.

Why Cashmere Loses Softness

• Harsh detergents — enzymes and strong chemicals strip natural oils from cashmere fibers
• Hot water washing — roughens fiber scales and removes lanolin
• Soap residue — insufficient rinsing leaves detergent in the fibers
• Hard water minerals — calcium and magnesium deposits make fibers feel stiff
• Long storage — fibers can compress and lose their natural loft

Method 1: Conditioner Soak (Most Effective)

1. Fill a basin with cool water.
2. Add 2–3 tablespoons of hair conditioner or fabric softener. Mix gently.
3. Submerge the cashmere and soak for 30 minutes.
4. Do not rinse completely — leave a small amount of conditioner in the fibers. This is what restores softness.
5. Gently press out excess water — never wring.
6. Roll in a towel to absorb more water.
7. Lay flat on a sweater drying rack and reshape. Air dry completely.

Method 2: Switch to Cashmere-Specific Detergent

Regular detergents strip the natural oils that keep cashmere soft. Switching to The Laundress Wool & Cashmere Shampoo preserves these oils and maintains softness with every wash. This is the most important long-term change you can make.

Method 3: Vinegar Rinse for Hard Water

If you have hard water, mineral deposits can make cashmere feel stiff. Add a small splash of white vinegar to the final rinse water — it dissolves mineral buildup and restores softness without affecting the fiber or color.

Method 4: Steam

Hold a steam iron a few centimeters above the cashmere and release steam. The moisture and heat relax compressed fibers and restore loft and softness. Don't touch the iron to the cashmere — steam only.

Maintaining Softness Long Term

• Always wash in cool water with cashmere shampoo.
• Add a small amount of fabric softener to the rinse water occasionally.
• Rinse thoroughly to remove all soap residue.
• Store folded — not compressed — to maintain fiber loft.
• Air out between wears to keep fibers fresh and soft.

Frequently Asked Questions

Why does my cashmere feel stiff after washing?

Usually soap residue (rinse more thoroughly), hard water minerals (add vinegar to final rinse), or using the wrong detergent. Switch to cashmere-specific shampoo and rinse in cool water until completely clear.

Will conditioner damage cashmere?

No — hair conditioner is safe for cashmere. It coats the fiber scales, reducing friction and restoring softness. Use a small amount and don't rinse completely for best results.

How often should I do a conditioner soak?

When cashmere feels less soft than usual — typically every 3–5 washes. Using cashmere shampoo regularly reduces how often a conditioner soak is needed.

Can new cashmere feel stiff?

Yes — new cashmere sometimes has finishing treatments that make it feel stiffer than it will after washing. A conditioner soak after the first wash usually restores the natural softness immediately.

Does cashmere get softer with age?

Yes — well-cared-for cashmere becomes softer with each wash and wear as the fibers break in. This is one of the reasons quality cashmere is considered an investment — it improves with age.