How to care for merino knitwear

Before washing any merino knitwear, always take a moment to read the care label inside the garment.

Modern merino wool clothing is often designed with convenience in mind, and many pieces are suitable for gentle machine washing. However, some finer knits may recommend hand washing only. The care label provides the most reliable guidance for that particular garment. 

Following the care instructions helps to: 

• Prevent shrinkage 
• Avoid damage to the fibres 
• Keep the knitwear looking as intended

When in doubt, always choose the gentlest option.

Knowing how to wash merino jumpers correctly is key to keeping them soft and comfortable.

When washing merino knitwear, always:

• Choose a cool or cold temperature
• Select a wool or delicate cycle
• Use a mild detergent designed for wool

Standard detergents can be too harsh for merino fibres and may strip away their natural softness. It is also important to avoid bleach and fabric softeners, as these can weaken the fibres and affect the feel of the garment.

A gentle wash helps maintain the quality and appearance of merino wool clothing over time.

Turning your merino knitwear inside out before washing is a simple step that makes a noticeable difference.

This helps to protect the outer surface of the fabric from friction and rubbing during the wash, particularly in a washing machine. It is especially beneficial for fine or lightweight knits, helping them retain a smooth, tidy finish.

For added care, you may also choose to place your knitwear inside a mesh laundry bag.

Merino knitwear benefits from being washed with care and plenty of space.

Overloading the washing machine can cause excessive movement and agitation, which may lead to stretching or distortion. Washing knitwear in smaller loads allows garments to move gently and evenly through the water.

This simple step helps to:

• Protect the shape of the garment
• Reduce unnecessary wear
• Keep knitwear looking neat and well cared for

Heat and movement are the main causes of damage to wool.

Tumble drying merino knitwear can result in shrinkage, misshaping or a loss of softness. Instead, after washing, gently reshape the garment while it is still damp.

To dry merino knitwear properly:

• Lay it flat on a clean towel or drying rack
• Smooth it back into its natural shape
• Allow it to air dry away from direct heat or sunlight

Drying knitwear flat helps it retain its structure and ensures it dries evenly.

 ❌ Do not use hot water
 ❌ Do not tumble dry
 ❌ Do not wring or twist when wet
 ❌ Do not hang to dry or store

Correct storage is just as important as careful washing when caring for merino wool clothing.

Hanging knitwear can cause it to stretch over time, particularly at the shoulders and neckline. Folding your knitwear helps it keep its shape and look smart between wears.

For best results:

• Fold knitwear neatly
• Store it in a drawer or on a shelf
• Avoid overcrowding, which can cause creasing

This approach keeps your wardrobe organised and your knitwear ready to wear.

For further guidance on caring for wool garments, trusted organisations such as The Woolmark Company also recommend gentle washing, cool temperatures and flat drying.

Even the finest merino knitwear can develop small bobbles with regular wear. This is a natural occurrence caused by gentle friction and does not reflect the quality of the garment.

If bobbling appears:

• Use a fabric comb or de-bobbler gently
• Work slowly and carefully over the surface
• Avoid pulling bobbles by hand

Regular, gentle attention will keep your merino jumpers looking smooth and well cared for.

You do not need to wash merino knitwear after every wear to keep it feeling fresh.

To revive garments between washes:

• Air them outdoors or near an open window
• Lightly steam to remove creases and refresh fibres
• Allow garments time to rest before wearing again

This helps merino wool recover its natural shape and maintain its comfort and elegance.

As a natural fibre, merino wool can attract moths if it is not stored carefully — particularly when knitwear is put away for longer periods.
The good news is that preventing moth damage is straightforward with a few sensible precautions.

To protect your merino knitwear:

• Store garments clean and completely dry
• Fold knitwear neatly and store it in drawers or garment boxes
• Use cedar moth repellents to deter moths naturally

Cedar is an effective and gentle option that helps protect knitwear without harsh chemicals.
If you notice signs of moth damage or suspect moth activity, act promptly:

• Place the affected knitwear in a sealed plastic bag
• Put it in the freezer for two weeks
• Remove and allow it to return to room temperature naturally

Freezing helps eliminate any larvae or eggs and prevents further damage. Once treated, the garment can be gently aired and returned to storage.
Taking these steps helps safeguard your knitwear and ensures it remains ready to wear when you need it.

Unlike cotton or synthetic fibres, merino wool has delicate, fine fibres that can stretch, shrink, or pill if not cared for correctly. With proper washing, drying, and storage, merino wool can maintain its shape, softness, and natural temperature-regulating properties for many seasons.

Merino knitwear is a timeless wardrobe favourite, prized for its softness, warmth and elegance. With a little care, it can stay beautiful for many years. This guide explains how to care for merino knitwear properly, including washing less often, using gentle cold washes, drying flat, storing folded, and protecting garments from moths. Practical tips on refreshing between wears, removing bobbles, and handling delicate fibres ensure your merino jumpers remain soft, comfortable, and perfectly shaped. With these simple steps, your merino wool clothing will continue to offer effortless style and lasting comfort season after season.