Rust on Cotton

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Rust stains need acid to dissolve — never use bleach, which actually sets rust stains permanently.

checklistTreatment Steps

Step 1: Apply Lemon Juice and Salt

Sprinkle salt over the rust stain, then squeeze fresh lemon juice generously on top. The acid in the lemon dissolves the iron oxide while the salt provides gentle abrasion.

Step 2: Let It Sit in Sunlight

If possible, lay the item in direct sunlight for 1–2 hours. The combination of sun, acid, and salt lifts the rust naturally.

Step 3: Rinse and Check

Rinse with cool water. For stubborn stains, apply white vinegar directly and let it soak for 30 minutes before rinsing again.

Step 4: Wash Normally

Once the stain is gone, wash the item as normal. Do not put it in the dryer if any rust remains — heat will set the stain permanently.

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Critical Warning

Do not use hot water or put the item in the dryer before the stain is fully removed — heat permanently sets most stains into cotton fibers. Avoid bleach on coloured cotton — use it only on whites, and even then test first.

Supplies Needed

check_circleFresh Lemon Juice
check_circleTable Salt
check_circleWhite Vinegar
check_circleCool Water

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Pro Tip

Never use chlorine bleach on rust — it reacts with iron and locks the stain in permanently. Commercial rust removers (oxalic acid based) are highly effective if home methods fail. — Always use cold water for treatment. Cotton can be washed at 30–40°C once the stain is gone.