Cleaning a wool rug

A wool rug is more than just decoration; it's an investment in comfort, warmth and style. Wool is naturally a wonderful material that keeps itself clean and lasts for years, as long as you treat it right. Get it wrong, and you risk shrinkage, felting or permanent stains.

Want to clean your wool rug yourself and bring back those deep colours and soft texture? In this guide we dive deeper into the fibre than ever before. We explain how the material works, how to tackle specific stains and answer the most frequently asked questions.

The science behind your rug: Why wool is different

To understand how to clean wool, you first need to know what it is. Wool is an animal fibre (a protein fibre) that is fundamentally different from cotton or synthetic fabrics.

The structure: Under a microscope you can see that a wool fibre has scales, similar to a pine cone. These scales can hook into each other when they get wet and you rub them. This process is called felting. That's why our most important advice is: never scrub hard.
Lanolin (wool grease): Wool naturally contains lanolin. This is a greasy layer that protects the fibre against dirt and moisture. Because of it, moisture often beads up on the rug before soaking in. If you use harsh chemical products (such as all-purpose cleaner or Dasty), you strip this grease away. The result is a dull, dry rug that soaks up stains like a sponge.

When you clean a wool carpet, your goal is simple: remove the dirt without damaging the scales or removing the lanolin.

Weekly maintenance of a wool rug

Prevention is better than cure. Sand and fine dust sink deep into the pile of the rug. The sharp edges of sand grains act like sandpaper at the base of the fibres, causing the rug to wear bald over time.

Vacuuming technique: Always use the smooth nozzle of the vacuum cleaner. Avoid the rotating brush head (turbo brush); it can pull the wool loops loose, causing the carpet to shed excessively.
With the pile: Vacuum slowly in the direction of the fibres. This preserves the structure and shine.
Turn and rotate: Rotate the rug 180 degrees every six months. This prevents walking paths from staying visible and makes sure sunlight fades the rug evenly (instead of just one side).

Clean your wool carpet yourself in 6 steps

Does the rug no longer smell fresh or look dingy? With this 6-step plan you can safely clean a wool carpet.

Step 1: The old-fashioned beating

Vacuuming only removes 80% of the dust. Have you got the space? Hang the rug outside over a sturdy railing and beat it with a carpet beater. You'll be amazed at the clouds of dust that come out. No railing? Lay the rug (when it's dry outside) pile-side down on the grass and walk over it. The dirt falls out, between the blades of grass.

Step 2: Make the right cleaning mix

To clean a wool rug you don't need expensive chemical products. You can make the best solution yourself:

Recipe: Mix a bucket of lukewarm water (max 30 degrees) with a small splash of white vinegar. Vinegar neutralises odours and freshens up the colours. Want a bit more cleaning power? Add a tiny bit of green soap.
Forbidden products: Chlorine, bleach, ox gall soap (often too harsh for dyed wool) and detergents with optical brighteners.

Step 3: Test for colourfastness

Wool is often dyed with natural pigments that can bleed. Always test your soapy solution on an inconspicuous corner first. Dab the wet spot with a white cloth. Does the cloth stay white? Then you can safely continue. Does the rug release colour? Stop immediately and call in a specialist.

Step 4: Dab, don't soak

Lightly moisten a clean cotton cloth or sponge with your soapy solution. Dab the carpet clean in strips. Note: Wool can absorb a lot of moisture, but dries very slowly. If the underside (the backing) of the carpet gets wet, it can start to grow mould, leading to rot and nasty smells. So work on the surface only.

Step 5: Remove soap residue

Did you use green soap? Soap residue attracts new dirt, so your rug will be dirty again within a month. That's why you should always wipe the rug again with a clean cloth and just water (optionally with vinegar) to neutralise all the soap.

Step 6: The drying process

Always lay the rug flat to dry on a dry surface. Never hang up a wet wool rug; the weight of the water can permanently distort its shape. Make sure there's ventilation, but avoid direct heat sources such as the heater or full summer sun. Drying quickly with heat makes the wool fibres hard and brittle.

Stain guide: First aid for accidents

Not every stain is the same. Below you can read how to remove specific stains from your wool rug.

1. Liquids (coffee, wine or soft drinks)

Stain type: Tannin or dye stains.
Action: Dab immediately with kitchen paper to soak up as much liquid as possible. Then use a little sparkling water. The carbonation helps bubble the dirt to the surface. Dab dry with a dry cloth.

2. Grease stains (gravy, oil or candle wax)

Stain type: Grease.
Action: Water and grease don't mix, so water is counterproductive here. Sprinkle cornflour, talcum powder or baking powder on the stain. Let it soak in (the powder absorbs the grease) and vacuum it up after an hour.

3. Mud and soil

Stain type: Solid matter.
Action: Patience is your best friend here. Let mud dry completely. If you scrub wet mud, you rub it deep into the wool fibres. Once it's dry, you can vacuum up most of the sand and carefully brush away the remains.

Can you clean a wool carpet with a steam cleaner?

This is a frequently asked question with a clear answer: be extremely careful. Steam is water at 100 degrees Celsius. Wool can shrink from this heat, just like your favourite wool jumper would shrink on a hot wash. On top of that, a steam cleaner forces moisture into the carpet, which can damage the backing.

Still want to clean by machine? Then choose a spot cleaner (carpet cleaner/spray extraction) such as the Achaté Spot Cleaner. These devices spray water into the fibre and immediately suck it back up – along with the dirt. Because the dirty water is extracted straight away, the rug gets less wet.

Crucial: Always use cold or lukewarm water in this machine when cleaning wool, never hot water.

New wool rug? Watch out for shedding (pilling)

Have you just got a new wool rug and whole tufts of wool are coming off? Don't panic. This is called pilling and is normal for new wool rugs. They are loose fibres left behind during the production process. This stops by itself after a few weeks of vacuuming. Don't scrub hard to speed up the process, as that damages the yarn.