Home Cleaning

Streak-Free Glass Cleaner

Sparkling windows and mirrors without the blue chemical smell or the single-use plastic bottle. Rubbing alcohol is the key — it evaporates faster than water, which is exactly why commercial glass cleaners use it, and exactly why this works so well.

Prep time2 mins
Makes500ml
Stores2 months
DifficultyVery easy
Method

How to make it

  1. 1
    Combine all ingredients in a glass spray bottle

    Pour water in first, then alcohol, then vinegar. Adding alcohol first can cause splashing. Add essential oil last if using.

  2. 2
    Attach nozzle and shake briefly

    Shake for 5 seconds to combine. The mixture is mostly water and alcohol which blend easily — no vigorous shaking needed.

  3. 3
    Choose the right cloth — this matters

    A microfibre cloth is essential for streak-free results. Paper towels leave lint. Old cotton T-shirts work in a pinch. Avoid anything fluffy or loosely woven.

  4. 4
    Spray sparingly and wipe in S-motions

    One or two sprays per window pane is enough. Too much liquid causes streaks. Wipe in overlapping S-shaped motions from top to bottom — this moves dirt down rather than spreading it across.

  5. 5
    Buff dry immediately

    For mirrors: wipe until completely dry and buff in small circles for a final shine. Leaving any moisture on glass — even for 30 seconds — allows water spots to form.

Why streak-free cleaning is mostly about the cloth

The most common cause of streaky windows is not the cleaner — it is the cloth. A used, fabric-softener-treated cloth deposits a waxy residue on glass that creates streaks no cleaner can fix. Use a freshly washed, fabric-softener-free microfibre cloth, and the streaks disappear almost entirely regardless of what cleaner you use.

Safe to use on

Surfaces guide

Window glass
Mirrors
Glass shower doors
Glass table tops
Glass splashbacks
Stainless steel appliances
Tinted or UV-protected window film
Anti-glare screen coatings
Marble (use diluted cleaner instead)
Painted surfaces
Variations & customisations
  • Use vodka (at least 60% proof) instead of rubbing alcohol for the same result
  • Add 1 tbsp cornstarch dissolved in the water for extra streak resistance on large windows
  • Use lavender essential oil instead of peppermint for a calmer scent in bedrooms
  • For outdoor windows with heavy grime, increase vinegar to 3 tbsp
  • Omit essential oil entirely — the cleaner works identically without it