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How to remove hard water stains from anodized aluminum

Updated February 28, 2019

Hard water stains can be very frustrating to remove. Generally, hard water or lime stains leave aluminium or steel with chalky white spots or grey dullness. Fortunately, there are some very basic products that you probably already have in your house that can remove hard water stains from your anodised aluminium without a lot of fuss and trouble. If your stained aluminium is a coffee maker, stove or other kitchen item, avoid bleach and instead stick with natural and effective remedies that require non-toxic ingredients.

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  1. Fill a basin with white vinegar and soak several paper towels in it.

  2. Put on your rubber gloves and begin to remove the paper towels from the vinegar and lay them on the surface of the stains on your anodised aluminium product. If the anodised aluminium you are trying to clean is a faucet or other curved surface, attach the paper towels to the faucet, using a rubber band. Allow the paper towels to sit there for an hour before removing them.

  3. Wipe the surface of the area with a soft cloth. If the stains still remain, proceed to the next step.

  4. Mix a paste of three parts baking soda and one part water in a basin.

  5. Spread the paste over the hard water stains and allow it to sit on the stains for an hour before wiping the surface of the anodised aluminium clean with a soft cloth.

  6. Clean your anodised aluminium weekly with a gentle non-toxic bathroom-cleaning product.

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Things You'll Need

  • Paper towels
  • White vinegar
  • Rubber bands
  • Water
  • Baking soda
  • Basin
  • Rubber gloves

About the Author

Ashley Friedman graduated from Sarah Lawrence College in 2003 with a Bachelor of Arts in Creative Writing and Social Sciences. She has experience writing copy for the websites of creative professionals, and regularly contributes to several blogs covering popular culture, travel, food, and social action.

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