Hand Wash Cashmere Sweater at Home
The Essentials in 60 Seconds
Cold water. Cashmere detergent. 20-minute soak. No rubbing. Press dry in a towel. Lay flat. That is the entire process. Everything below is the detail behind each step — read what you need, skip what you already know.
Water Temperature: Cold Only
Fill a basin with cold water — 20°C to 30°C (68°F to 86°F). If the water feels anything warmer than lukewarm, it is too hot. Hot water felts cashmere permanently by locking the fiber scales together. Cold water keeps the scales relaxed and the fiber safe.
A kitchen or bathroom sink works perfectly. So does a clean plastic tub or bucket. The container just needs to be large enough to submerge the sweater fully without bunching it up.
Detergent: Less Than You Think
Add one teaspoon of cashmere or wool detergent to the water. Swirl to dissolve. The water should feel slightly slippery but not foamy. Too much detergent leaves residue that stiffens the fibers — the opposite of what you want.
No cashmere detergent on hand? Baby shampoo works. It is pH-neutral and enzyme-free, which is all that matters. Do not use regular laundry detergent, dish soap, or fabric softener.
The Soak
Turn the sweater inside out and lower it gently into the water. Press down until fully submerged. Then leave it alone.
Soak for 20 minutes. You can press the sweater gently against the bottom of the basin a few times during the soak to help the detergent solution flow through the fibers. That is the only agitation the sweater needs. The soaking time does the actual cleaning — the detergent lifts oils and dirt from the fibers over time, not through friction.
Do not rub, twist, scrunch, or scrub at any point. Every one of those actions causes pilling or felting in wet cashmere.
The Rinse
Lift the sweater out by scooping it from underneath with both hands. Support the entire weight — a wet cashmere sweater is heavy, and letting it hang from one point stretches the fibers.
Drain the basin. Refill with clean cold water. Submerge the sweater and press gently a few times. Drain. Repeat until the water shows no suds — typically two to three rinses.
Thorough rinsing matters. Any detergent left in the fiber dries stiff and dull. If you are not sure whether the rinse water is clear enough, do one more.
Drying: The Towel Roll
Lay a clean, dry towel flat. Place the sweater flat on the towel. Roll them together and press firmly — use your body weight. The towel absorbs water through pressure. Unroll. If the sweater is still quite wet, repeat with a second dry towel.
After pressing, the sweater should be damp but not dripping. Lay it on a fresh dry towel on a flat surface. Now reshape:
- Smooth the shoulders to their original width
- Straighten the side seams
- Pull the body gently to its original length
- Align the cuffs and hem
This step matters because cashmere sets its shape as it dries. Skip it and the sweater dries however it landed.
Flip once during drying. Keep away from heat and direct sunlight. Full drying takes 12-24 hours. Do not fold or wear until completely dry.
How Often
| How You Wear It | Wash Every |
|---|---|
| Over a base layer, light activity | 5-7 wears |
| Against skin, moderate activity | 3-4 wears |
| Active or sweaty conditions | Every wear |
| Before seasonal storage | Always |
Between washes, air the sweater overnight after wearing. Spot clean isolated stains with a damp cloth and a drop of detergent. The less you wash, the longer the cashmere lasts. See our full cleaning guide for the complete spectrum of cleaning methods.