We all LOVE cashmere — but knowing how to wash it properly can be a bit overwhelming...
There is so much advice out there so it's difficult to know where to begin. Whether you’ve invested in a brand new cashmere jumper or chosen a restored secondhand cashmere cardigan, the process is always the same... Gentle, minimal and mindful.
In this little guide, we’re going to look at:
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How to hand wash cashmere safely
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Can you machine wash cashmere?
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How to dry cashmere without shrinking it
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How often to wash your cashmere knitwear
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How to prevent pilling
Why Proper Cashmere Care Matters
Cashmere fibres are extremely fine — much softer than traditional sheep’s wool. That softness is what we love most about cashmere, but with such fine fibres, shrinkages and felting caused by heat and friction are important to look out for and to avoid.
The good news? Cashmere is actually pretty low maintenance and with correct care, quality cashmere can last decades.
How to Hand Wash Cashmere (Safest Method)
Hand washing is the best way to wash cashmere knitwear at home.
Step 1: Use Cool or Lukewarm Water
Fill a basin with cool or lukewarm water (maximum 20°C). Hot water is the main cause of shrinkage.
Step 2: Add a Gentle Wool Detergent
Use a non-biological detergent designed for wools, silks or delicate fabrics. You also only need a small amount - be sure to read the instructions - they really do help!
Avoid:
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Biological washing powders
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Fabric conditioner
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Bleach
Step 3: Soak — Don’t Scrub
Submerge your cashmere knitwear and gently press it under the water.
Let it soak for 10–15 minutes.
Do not rub or wring — friction causes pilling and felting.
Step 4: Rinse Carefully
Rinse with cool clean water until the detergent is fully removed.
Step 5: Remove Water Without Twisting
Press the garment gently against the basin.
Then lay it flat on a clean towel, roll it up, and press to absorb moisture.
Never wring cashmere — twisting distorts fibres.
Can You Machine Wash Cashmere?
Many modern washing machines have wool or delicate cycles suitable for cashmere.
If you trust your washing machine and are keen to do a quick wash while cracking on with your day, do the following:
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Select wool cycle/delicate cycle
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Use cold water (below 20C)
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Choose low spin/no spin
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Place knitwear in a mesh laundry bag
However, if you're unsure or don't trust your machine, hand washing remains the safest option.
How to Dry Cashmere Properly (Avoid Shrinking)
Drying is where most damage happens.
Always:
✔ Dry flat on a towel
✔ Reshape while damp
✔ Keep away from radiators
Never:
✘ Tumble dry
✘ Hang wet cashmere
✘ Place on direct heat
Avoid hanging — wet fibres stretch easily.
How Often Should You Wash Cashmere?
Cashmere does not need frequent washing.
Typically:
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Wash after 3–4 wears
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Air between wears
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Spot clean small marks
Over-washing shortens the lifespan of natural fibres.
Because cashmere is naturally breathable and odour-resistant, less washing actually improves longevity.
How to Remove Pilling from Cashmere
Pilling is normal and not a sign of poor quality.
To remove pills:
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Use a cashmere comb
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Or a gentle fabric shaver
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Always work on a flat surface
Light washing can actually help fibres settle over time.
Secondhand cashmere often pills less because loose fibres have already shed.
How to Store Cashmere in the UK (Moth Prevention Tips)
After washing:
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Fold neatly (never hang long-term)
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Store in breathable cotton bags
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Add cedar wood blocks or lavender sachets
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Avoid plastic boxes that trap moisture
Always store clean — moths are attracted to natural oils, not the wool itself.
Common Cashmere Care Questions
Does cashmere shrink when washed?
Only if exposed to heat or agitation. Cool water and gentle handling prevent shrinkage.
Can I iron cashmere?
Avoid direct ironing. Instead:
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Use a steamer
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Or iron on low heat with a cloth barrier
Is secondhand cashmere harder to care for?
Not at all. In many cases, high-quality pre-owned cashmere is more stable and durable than fast-fashion alternatives.
