How To · Fashion · Basics
The complete guide to cashmere care and maintenance
Cashmere demands respect, but it's not fragile—just intentional. Learn the exact techniques that keep your investment pieces soft, intact, and wearable for decades.
5 min read · IrisCashmere is not precious because it's delicate—it's precious because it's rare and expensive. The difference matters. Treating it well means understanding what actually damages it (friction, heat, neglect) versus what's just myth (hand-washing versus gentle machine cycles). The goal is simple: keep fibers aligned, prevent pilling, and store strategically so moths and moisture never stand a chance.
This guide walks you through every phase of cashmere ownership: the wash, the dry, the fold, and the fix. Follow these steps and your sweater will outlast the trend that made you buy it.
Cashmere fibers break under friction, not from water. Agitation is the enemy.
What you'll need.
- 01Cashmere-specific detergent
- 02Cool water
- 03Two clean, dry towels
- 04Cotton storage bag or acid-free tissue
- 05Cedar blocks or lavender sachets
- 06Cashmere comb (optional, for pilling removal)
Step one · 3 minutes
Check the label and spot-test
Read your garment's care instructions first—some cashmere blends have different requirements. Fill a small bowl with cool water and add one drop of cashmere-specific detergent or gentle wool wash. Dab the mixture onto an inconspicuous area (inside seam, underarm) and let it sit for 30 seconds. Blot with a clean white cloth. If no color bleeds and the fabric feels unchanged, you're safe to proceed with a full wash.
Cashmere-specific detergents are worth the investment—they contain lanolin that replenishes natural oils stripped by regular soap.
Step two · 2 minutes
Fill and prepare your wash vessel
Use a sink, basin, or washing machine set to delicate/hand-wash cycle. Fill with cool water (never hot—heat opens fibers and causes shrinkage). Add one teaspoon of cashmere detergent per garment. Stir gently to distribute. If hand-washing, submerge the sweater and let it soak for 10 minutes before any agitation. This allows detergent to penetrate fibers without friction.
Cold water is non-negotiable. Even lukewarm water can cause permanent relaxation of the knit structure.
Step three · 5 minutes
Wash without wringing or twisting
If hand-washing: gently squeeze soapy water through the fabric using your palms. Pay attention to cuffs, collar, and underarms where body oils accumulate. Never wring, twist, or scrub. If using a machine: select the gentlest cycle available (30°F, 400 RPM maximum). Drain the soapy water and refill with cool water for a rinse cycle. Repeat the rinse 2–3 times until water runs clear and no soap residue remains.
Gentle squeezing mimics the action of your hands—it cleans without breaking fibers. Imagine you're handling a newborn.
Step four · 3 minutes
Remove excess water and reshape
Lay the wet sweater flat on a clean, dry towel. Gently press down with your hands to absorb water—do not squeeze. Roll the towel loosely with the sweater inside to remove more moisture. Unroll and transfer the sweater to a fresh dry towel. Reshape it to its original dimensions (check the label for measurements if needed). Smooth out wrinkles and ensure seams are straight. This step is critical: cashmere sets as it dries, so correct shaping now prevents permanent distortion.
Never hang wet cashmere. Gravity will stretch it irreversibly. Flat-drying is non-negotiable.
Step five · 12 hours
Air-dry completely in a neutral space
Leave the sweater on the towel in a well-ventilated room away from direct sunlight, heat sources, or radiators. Flip it halfway through drying (around 6 hours). Drying time varies by thickness and humidity—expect 12–24 hours for a standard crew-neck sweater. The sweater is fully dry when it feels cool to the touch and shows no damp spots when pressed.
A fan pointed at (not directly on) the sweater speeds drying without causing uneven shrinkage.
Step six · 5 minutes
Store strategically to prevent pilling and moths
Fold your cashmere (never hang it) and store in a breathable cotton bag or acid-free tissue paper. Avoid plastic, which traps moisture. Keep in a cool, dry closet away from direct light. Add cedar blocks or lavender sachets to deter moths—replace every 3 months. Separate cashmere from rougher fabrics like denim or canvas, which cause pilling through friction. If pilling does occur, use a cashmere comb or fine-tooth brush to gently remove pills—never pull or cut them.
Cashmere only needs washing every 3–5 wears. Between washes, air it out on a hanger for 24 hours to refresh and let body heat relax fibers.
How to know your cashmere is properly cared for
Well-maintained cashmere feels softer over time, not stiffer. Seams remain intact, colors don't fade, and the knit structure holds its shape. You'll notice fewer pills, no stretching at the shoulders, and a garment that actually improves with age.
Questions at the mirror.
My cashmere shrank after one wash. Can I fix it?
Partially, yes. Fill a sink with cool water and add one tablespoon of hair conditioner (sounds odd, but it works). Submerge the sweater for 10 minutes, then gently stretch it back to size while wet. Lay flat to dry. This won't fully restore it, but it can recover 50–70% of lost length. Prevention is always better: never use hot water.
How do I remove a stain from cashmere?
Blot immediately with a clean cloth—don't rub. For fresh stains, use cool water and a tiny amount of gentle detergent. For set-in stains, consult a professional cleaner experienced with cashmere. Home remedies like vinegar or baking soda can damage the fiber or leave residue.
Is dry-cleaning necessary for cashmere?
No. Professional dry-cleaning uses harsh chemicals that strip natural oils and can yellow fibers over time. Hand-wash or gentle machine wash at home is gentler and more cost-effective. Reserve dry-cleaning for stubborn stains or heavily soiled garments.
Why is my cashmere pilling so much?
Pilling happens when short fibers work loose from friction—it's normal, especially in the first few wears. Reduce it by washing less frequently, storing separately from rough fabrics, and using a cashmere comb to gently remove pills. Lower-quality cashmere pills more because fibers are shorter and weaker.
Can I machine-wash cashmere?
Yes, if your machine has a hand-wash or delicate cycle rated for 30°C (86°F) and 400 RPM or lower. Use a mesh laundry bag to contain the sweater and reduce agitation. Hand-washing is still gentler, but a proper machine cycle is acceptable for cashmere blends.