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Aluminum is frequently used in many household fixtures because of its light weight and natural resistance to corrosion. Aluminum is commonly found in everything from patio furniture to bathroom shower curtain rods. While aluminum is resistant to oxidation, it is not completely immune to it and likewise it can become stained with mold over time if kept in a damp environment such as a bathroom. Fortunately, cleaning an oxidized aluminum shower curtain rod is usually a simple process.
Cut several lemons in half with a knife.
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Sprinkle 1 tsp. of salt and 1 tsp. of baking soda onto each lemon half. Add more of each if the aluminum shower rod is particularly rusted or moldy.
Scrub the lemon up against the aluminum and run it liberally back and forth. The acidity of the lemon juice combined with the salt and the baking soda will help remove oxidation as well as mold.
Use a scrub brush on the aluminum to further scrape away any deposits.
Spray a soft rag with a mixture of three parts warm water and one part white vinegar in a spray bottle. The mixture helps to further clean the metal. Run the damp rag along the shower rod and then use a dry part of the rag to dry it off.