It sounds strange at first—using a raw potato to clean windows—but this old household trick has surprised many people with how well it actually works. Without harsh chemicals, sprays, or strong smells, a simple potato can help remove streaks, grime, and even stubborn water spots from glass.
It’s not magic. It’s just natural starch doing clever work.
Why a Potato Works on Glass
Raw potatoes contain natural starch and mild acids, which:
- Lift dirt and grease
- Break down residue from rain and pollution
- Reduce streaking
- Help glass dry more evenly
Unlike chemical cleaners, potatoes don’t leave behind harsh residues or strong fumes.
How to Clean Windows with a Potato
You will need:
- 1 raw potato
- A clean cloth or paper towel
- A bowl of clean water
Step-by-step:
- Cut the potato in half.
- Rub the cut side directly onto the glass in circular motions.
- You’ll notice a thin, cloudy film—this is the starch doing the cleaning.
- Wipe the glass with a damp cloth.
- Dry with a clean towel for a clear, streak-free shine.
That’s it.
What Many People Notice Right Away
- Windows become visibly clearer
- Smudges disappear
- Water spots fade
- Less streaking than with some sprays
- No chemical smell in the room
It works especially well on:
- Kitchen windows
- Bathroom mirrors
- Car windows
- Glass tables
Bonus Uses for Potato on Glass & Surfaces
- Removes fog from mirrors
- Helps clean shower doors
- Lightly polishes glass lamps and vases
- Can reduce condensation marks
Important Tips
- Always wipe the starch off completely
- Don’t use on untreated wood near glass
- Use a fresh cut side for best results
- Discard the potato after cleaning
The Real Reason People Are Surprised
What shocks most people isn’t that it works—it’s that something so ordinary can replace a store-bought cleaner for such a basic task. No chemicals, no sprays, no special tools—just a potato and a cloth.
Sometimes the most unbelievable cleaning tricks are hiding right in your kitchen.
