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A simple alum trick can clean rust and black stains from iron woks in just a minute, making them shine again without costly cleaners or hours of scrubbing

Alum makes old iron kadhai shine like new in just a minute. (AI Generated)
The humble iron kadhai (wok) is an essential part of Indian kitchens. Whether for cooking vegetables, dal, or other dishes, food made in an iron kadhai is not only delicious but also packed with health benefits.
However, the real challenge begins when the wok gathers rust or stubborn black residue. At times, the rust is so tough that even after hours of scrubbing, it refuses to come off, leaving your hands sore and your patience tested.
But here’s a simple desi method that can make your kadhai sparkle in just a minute, without the need for expensive cleaners or exhausting scrubbing. All you need is one simple white ingredient, along with a few household items. The star of this cleaning method is a piece of alum. Along with alum, you will need water, detergent powder, dishwashing liquid, and a steel scrubber or old scrub pad.
Steps To Clean The Kadhai
- Place the kadhai on the stove and pour in one cup of water.
- While the water heats, grind a piece of alum into a fine powder, about one teaspoon. Add the alum powder to the hot water.
- Stir in one teaspoon of detergent powder and let it boil for 3-4 minutes. Foam will begin to form.
- Using a spoon, spread this foamy water over the edges so the entire kadhai is soaked, allowing the rust and grime to loosen.
- Turn off the stove and let the wok cool slightly. Transfer the alum water to a bowl and lightly scrub the kadhai with a steel scrubber.
- Wipe it dry with a clean cloth, then rub a thin layer of mustard oil on the surface to prevent future rusting.
Why Alum Works
When dissolved in water, alum forms a mild acidic solution that breaks down the outer layer of rust and black residue on iron. It also cuts through the greasy residue from oil, spices, and food particles, making cleaning quick and effortless.
Benefits of This Method
- The kadhai shines in just one minute.
- No need for hours of hard scrubbing.
- Removes both rust and black residue effectively.
- 100% homemade, inexpensive, and chemical-free.
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