How to Get Rust Stains Out

Iron oxide — never bleach it; a baking-soda soak instead.

Quick answer

Fresh Rust on Cotton

Before you startAlways test any treatment in an inconspicuous area first, and check the garment's care label before you begin.
  1. Brush off loose rust.
  2. Soak in cold water with baking soda for up to 30 minutes.
  3. Rub in liquid detergent.
  4. Launder in the warmest water safe for the fabric; repeat before drying if needed.

Don’t do this

  • Never use chlorine bleach on rust — it intensifies the stain.

Sources: Tide; King University stain removal guide (PDF)

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Frequently asked questions

Why not bleach rust?

Chlorine bleach reacts with iron and intensifies the stain. Use the baking-soda soak method instead.

What causes rust stains on clothes?

Often the water supply or a rusty washer drum, zipper, or button — find the source or it will recur.

Safety rules for every treatment
  • Test every treatment in an inconspicuous area first — some treatments can fade dyes or damage finishes.
  • Blot a wet stain; never rub it. Rubbing pushes the stain deeper into fibers.
  • Check the garment's care label and follow it — skip any step the label prohibits.
  • Never put the item in the dryer until the stain is completely gone; heat sets most stains.
  • Never mix ammonia with chlorine bleach — the fumes are toxic and dangerous.
  • Never use chlorine bleach on rust — it can intensify the stain.
  • Rubbing alcohol is flammable and can fade some dyes; spot-test first and ventilate the area.
  • Acetone dissolves acetate, triacetate, and modacrylic fabrics — check the fabric label first.
  • Use cold water first on blood and other protein stains; hot water sets them.
  • When in doubt — a valuable, vintage, or delicate item — take it to a professional cleaner instead.

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