Machine Washing (For Everyday Items like Tees & Tops)
Some merino garments - like short and long-sleeve tops, bamboo-merino blends, and socks - are machine washable on a delicate cycle. To keep them in the best condition:
- Turn your merino garment inside out to reduce friction.
- Select the wool, delicate, or cold wash cycle (no spin or a low-speed spin is best).
- Use a mild, wool-friendly detergent (standard detergent can strip the fibres).
- Remove from the machine immediately after washing - leaving wet merino bunched up can cause creases and shape loss.
- Lay flat to dry - never hang wet merino as it can stretch out of shape.
The Do’s & Don’ts of Washing Merino
Do:
✔️ Use a wool-friendly detergent – Regular laundry powders contain enzymes that break down merino’s natural structure. Stick to a pH-neutral, wool-safe detergent.
✔️ Wash in cold or lukewarm water – Anything hotter than 30°C (86°F) can cause shrinkage.
✔️ Wash similar colours together – While merino doesn’t usually bleed, darker shades may transfer colour slightly when first washed.
✔️ Turn garments inside out – This helps prevent pilling and keeps the outer surface smooth.
✔️ Wash with like fabrics – Washing merino wool with other soft fabrics (rather than rough denim or zippers) will help preserve the fine fibres.
Don’t:
✖ Use bleach or fabric softeners – These break down the fibres, reducing merino’s lifespan.
✖ Wash in hot water – Heat tightens the fibres, causing irreversible shrinkage.
✖ Over-wash your merino garments – Unlike cotton, merino doesn’t trap odours, so you can wear it multiple times before washing. A simple air-out overnight is often enough.
✖ Soak for too long – A quick wash is enough. Extended soaking can weaken the natural structure of the wool.
Dealing with Stains, Sweat, and Odours
Got a spill? Spot clean stains immediately with cold water and mild soap. Sunlight soap is a great go to. Avoid rubbing aggressively - gently blot instead.
Feeling sweaty? Let your merino air out in fresh air for a few hours before deciding if it needs washing.
Stronger odours? A gentle hand wash should do the trick. If it’s persistent, add a splash of white vinegar to the rinse water - it’s wool-safe and helps neutralise smells.
How to Dry Merino Wool
The best way to dry merino is the flat drying method. This prevents stretching and helps the garment keep its natural shape.
- Lay your garment flat on a clean, dry towel.
- Gently reshape the item to its natural form - especially for jumpers, cardigans or base layers.
- Place it in a shaded, well-ventilated area - avoid direct sunlight or heat sources.
- Flip the garment halfway through drying to ensure even airflow.
What to Avoid:
- Tumble drying – Heat and friction can cause shrinkage and fibre damage.
- Drying on a radiator or in direct sunlight – Heat exposure can weaken fibres and fade colours.
Can You Put Merino Wool in the Dryer?
Short answer: It’s not recommended.
While some modern merino blends claim to be tumble-dryer safe, air drying preserves the fibres best. If you’re in a hurry and absolutely need to use a dryer:
- Use low heat or a wool-friendly setting.
- Remove the garment while slightly damp and lay it flat to finish drying.
- Never tumble dry pure merino wool - heat will shrink it.