Simple Homemade Glass Cleaner: Warm Water, White Vinegar and Mild Washing-Up Liquid

A homemade glass cleaner made from warm water, white vinegar and a tiny amount of mild washing-up liquid helps lift grease, finger marks and light mineral residue. To stop streaks on windows, mirrors and shower screens, however, the cloth you choose, how much you spray and how you dry the surface matter just as much as the mixture itself.

Why do vinegar and washing-up liquid help to clean glass?

White vinegar contains acetic acid, which helps loosen marks left by water and small mineral deposits. Its mild acidity also makes it easier to shift residue that can remain on the glass once rain spots or shower splashes have dried.

Mild washing-up liquid breaks down greasy build-up from fingerprints, kitchen vapour and body products that collect on shower screens. One drop is enough to support the clean: using more creates excess suds and can leave a film that shows up as a halo once the glass has dried.

How do you make homemade glass cleaner in the right ratio?

You can mix the formula in a clean spray bottle, using equal parts warm water and vinegar. Make only what you plan to use straight away, rather than leaving the solution sitting in the bottle for long periods:

• Pour in 1 cup of warm water (about 250 ml);
• Add 1 cup of white vinegar;
• Put in just 1 drop of mild washing-up liquid;
• Close the bottle and combine with gentle swirls;
• Label the bottle and keep it out of children’s reach;
• Never mix this solution with bleach or other cleaners.

Why does glass still look streaky after cleaning?

Many marks appear when the product dries before it has been spread and wiped away. This is common on sun-warmed windows, because the water and vinegar evaporate quickly and leave visible lines before the glass is properly buffed.

What you wipe with also affects the finish. Cotton cloths, worn flannels and kitchen roll can shed fibres, while spraying too much solution leaves the surface soaked. A clean microfibre cloth absorbs the mixture more effectively and reduces the residue that leads to streaks.

How do you use the mixture on windows, mirrors and shower screens?

Before you spray anything, remove dust and loose particles so you do not drag grit across the surface. Apply only a light mist and wipe it off promptly, using a method suited to each area:

• On windows, wipe with microfibre, then finish with a squeegee from top to bottom;
• On mirrors, spray onto the cloth to prevent liquid pooling around the edges;
• On shower screens, let it sit for a few minutes on light mineral marks;
• Dry the squeegee blade after each pass;
• Use a second, dry cloth to buff corners and trims;
• Clean when the glass is cool and out of direct sunlight.

The right drying method finishes the job without streaks

Move the squeegee across the glass in continuous bands, starting at the top. Wiping the blade between passes stops dirty water being spread back over the surface, while a dry microfibre cloth removes droplets left along the edges and where the glass meets the frames.

This approach for a high-shine finish works best with minimal washing-up liquid, moderate spraying and immediate polishing. When the homemade glass cleaner is used on cool glass, the combination removes grease and residue without leaving the film that causes halos after drying.