How to Wash Glasses Cleaning Cloths – UK Guide

Over time, even quality microfibre cloths collect oils, dust and residue from lenses. When a cloth starts leaving streaks or feels less effective, it is usually a sign that contamination has built up within the fibres.

Washing helps restore a cloth’s ability to lift contamination, but only when oils, debris and wash-product residue are properly removed. A cloth can look freshly washed and still smear if residue remains in the fibres.

If you’d like to understand how friction, fibre density, contamination control and replacement timing work together, our Lens Care Guide explains the wider lens-care approach.

The key point: a cloth is only clean when oils, trapped debris and wash-product residue have been removed from the fibres. Washing matters, but rinsing thoroughly matters too.

Why Microfibre Cloths Should Be Washed Separately

Always wash microfibre glasses cleaning cloths separately from other fabrics.

Washing microfibre alongside regular laundry can allow lint and loose fibres to become trapped inside the microfibre weave. This can reduce absorbency and make the cloth less effective over time.

The Safest Way to Wash a Glasses Cleaning Cloth

A gentle hand wash is usually the safest way to clean a glasses cloth and preserve the performance of the microfibre.

• Shake off loose dust or grit before washing.
• Hand wash separately in lukewarm water.
• Use a very small amount of mild, unscented soap only when needed.
• Rinse thoroughly until no soap residue remains.
• Air dry naturally. Avoid tumble dryers, radiators and high heat.

High heat can damage or fuse microfibre strands, reducing the surface area that helps the cloth lift oils and contamination from lenses.

Why a Washed Cloth Can Still Smear

Washing matters, but a cloth is not automatically clean just because it has been through water. Detergent residue, fabric conditioner and remaining oils can stay within the fibres.

When that residue touches a lens, it can transfer back onto the surface instead of lifting contamination away. The result is haze, smearing and repeated wiping.

Rinsing thoroughly and avoiding fabric conditioner are two of the simplest ways to protect the cleaning performance of microfibre.

What Detergents to Avoid

To protect microfibre performance and avoid coating the fibres, avoid using:

• Fabric softeners
• Bleach
• Strong or scented detergents

These products can coat or degrade fibres, reducing absorbency and increasing the likelihood of smearing.

How Often Should You Wash a Microfibre Cloth?

If you clean glasses daily, washing your cloth once a week is usually sufficient. Occasional users may only need to wash it every few weeks.

Regular washing helps reduce the build-up of oils, dust and contamination within the fibres, making it easier for the cloth to lift rather than redistribute material across the lens surface.

When Washing Is Not Enough

Still smearing after washing?

If a cloth continues to smear after being cleaned correctly, the problem may be fibre degradation, contamination build-up or insufficient fibre density rather than the washing method itself.

→ See our guide to choosing a high-performance cloth for coated lenses

Microfibre cloths are designed to be washed and reused, but no cloth lasts forever. Over time, fibres can become permanently clogged, flattened or damaged by heat and wash products.

Signs a cloth may need replacing include:

• Persistent streaking after washing
• Reduced absorbency
• Fibres that feel stiff or less soft
• Visible lint embedded in the weave

Cloth Size and Contamination Control

Oversized cloths provide more usable surface area, making it easier to fold to a clean section during use. This reduces repeated wiping, helps minimise finger contact and oil transfer, and supports better contamination control.

Cloth size is not only a convenience feature. More clean surface area can make everyday lens care more controlled, especially for glasses, sunglasses, camera lenses and other coated optics.

For regular lens cleaning: keeping more than one cloth in rotation can help reduce contamination build-up over time.

One cloth can stay at home, one can stay in a bag or case, and one can remain clean while another is being washed.

Choosing a Washable, Long-Lasting Microfibre Cloth

Construction quality influences how well a cloth performs after repeated washing. Fibre density, edge finishing and usable surface area all affect how reliably it can be kept in service.

A cloth that maintains its structure is less likely to redistribute contamination or require repeated wiping during daily lens care.

For everyday use on glasses, camera lenses and screens, you can explore our oversized optical-grade microfibre cloths here .

Frequently Asked Questions

How often should you wash a glasses cleaning cloth?

If you clean glasses daily, washing your cloth once a week is usually sufficient. Less frequent users may only need to wash their cloth every few weeks.

Can you wash a glasses cleaning cloth?

Yes. Most quality microfibre glasses cleaning cloths are designed to be washed and reused many times. Hand washing in lukewarm water is generally the safest approach.

Can you wash a spectacle cleaning cloth in a washing machine?

You can, but only if it is washed separately from lint-producing fabrics and without fabric softener. Many users prefer hand washing because it reduces the risk of contamination from other laundry.

Why does my glasses cleaning cloth still smear after washing?

A washed cloth can still smear if detergent residue, fabric conditioner or remaining oils stay in the fibres. That residue can transfer back onto the lens instead of lifting contamination away.

Can a dirty glasses cleaning cloth scratch lenses?

A contaminated cloth can trap particles that increase friction during cleaning. Keeping a cloth clean helps reduce unnecessary contact between trapped debris and delicate lens coatings.

How should you dry a microfibre glasses cloth?

Allow the cloth to air dry naturally. Avoid tumble dryers and high heat, as excessive temperatures can damage microfibre strands and reduce cleaning performance.