Cleaning Windows With White Vinegar and Microfibre Cloths: Avoid Direct Sunlight

In France and elsewhere, window panes quickly reveal dust, pollen and fingerprints as soon as sunlight shines through them.

Published on 13 June 2025, the source media article, whose name is not given on the supplied page, sets out a homemade mixture of water, white vinegar and washing-up liquid. Its main message is that the cleaning product alone is not enough: when the windows are cleaned and which drying material is used are equally important.

Why windows look dirty again so quickly

A freshly cleaned window never stays spotless for long. Airborne dust settles on the glass, as does pollen at certain times of year. Fingerprints, rain splashes and marks from pets also make upkeep more difficult.

Sunlight does not make windows dirty; instead, it makes existing imperfections easier to see. A thin layer of dust that previously went unnoticed can suddenly look like a haze. Wiping marks are also particularly visible when light hits the glass head-on.

“The outcome depends just as much on wiping and drying as on the liquid applied to the window.”

The source page highlights a common mistake: relying solely on window cleaner. A product that is incorrectly measured, used too generously or not properly removed may leave residue behind. This can sometimes attract further dust and leave the glass looking dull.

Heat: a misleading ally when cleaning windows

Cleaning windows in direct sunshine may seem convenient. The glass dries rapidly, apparently saving time. In practice, however, that speed can cause problems. The liquid evaporates before wiping is finished, making marks more likely.

This is especially noticeable on large patio doors, south-facing windows and glass that is already warm. The product can dry unevenly in separate areas. Achieving an even finish then becomes harder, even after the cloth has been passed over the surface several times.

Choosing a more suitable time

Overcast conditions, a cool morning or late afternoon will generally provide better cleaning conditions. There is no need to wait for perfect weather, but it is best to avoid cleaning when the glass is heating up strongly in the sun.

• First remove dust from the frame and window ledges.
• Avoid spraying on an excessive amount of the mixture.
• Clean one small area at a time.
• Wipe immediately with a clean, dry cloth.
• Turn the cloth to a fresh side when the fabric becomes damp or dirty.

This approach reduces the likelihood of moving dirt from one part of the window to another. It also prevents deposits collected in the frame channels from being spread across the glass.

The homemade window-cleaning mixture suggested by the source

The recipe in the article uses everyday household products. The source advises combining two cups of water, one cup of cleaning white vinegar and one teaspoon of washing-up liquid.

Pour the mixture into a spray bottle and shake it before use. Then spray a small amount onto the window without soaking the glass. The washing-up liquid helps lift greasy dirt, while white vinegar is widely used in household cleaning for its limescale-removing properties.

“The source recommends finishing the cleaning process with a microfibre cloth to reduce residue and scratches.”

The claims made for this mixture should nevertheless be treated with caution. The source page attributes a disinfecting effect to it in particular. A household mixture should not, however, be regarded as a disinfectant without clear information from the manufacturer about concentration and contact time. For windows, the primary purpose is to remove dust, greasy marks and visible smears.

Using a microfibre cloth correctly

A microfibre cloth is used to trap particles and absorb moisture. It must be clean: microfibre already carrying grease, detergent or dust may leave a film on the glass.

For a standard-sized window, wiping steadily from top to bottom makes missed areas easier to spot. On a patio door, working in vertical sections stops the product from drying too quickly. A second dry microfibre cloth can help finish the corners and edges.

What applies in France

In France, this cleaning routine does not involve any administrative procedure or specific regulation. It is simply part of ordinary household cleaning. Window-cleaning products, household vinegar and microfibre cloths are readily available in shops.

A few precautions are still worthwhile. Vinegar, even when diluted, is not suitable for every surface. It is preferable not to leave it on materials that are sensitive to acids, including certain limestone-based stones. For frames, seals, handles and ledges, testing on an inconspicuous area first can confirm that there is no unwanted reaction.

Vinegar must never be mixed with bleach or another cleaning product whose composition is unknown. Combining household cleaning products can release dangerous fumes. A simple preparation, used sparingly in a well-ventilated room, is easier to control.

A method suited to the most common marks

Very dirty windows often require two stages. The first is to remove dust and dirt from the frame, while the second deals with the glass itself. Spraying liquid straight onto a pane covered in particles can create a fine muddy layer and increase the number of passes needed.

For fingerprints around handles, targeted wiping is often enough. Outdoor marks caused by rain or pollution may require the process to be repeated using a rinsed microfibre cloth that has then been thoroughly wrung out.

Windows are not the only surfaces affected. The same focus on drying can also be applied to mirrors, provided the mixture is checked beforehand for compatibility with their frame. In every case, a clean cloth, a small amount of product and glass that is not warming in the sun are the simplest combination for reducing marks.