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How to Remove Rust from Stainless Steel Sinks

January 22, 2025

A kitchen fashioned with a stainless steel sink and appliances creates a sleek, sophisticated, and professional look.

While the term “stainless steel” suggests that the metal is resistant to blemishes, it is not completely immune. Rust stains are a common issue with stainless steel sinks. Understanding how to properly care for and clean your stainless steel sink will help maintain its pristine condition. Before diving into how to remove rust from stainless steel, there are some important things to consider.

What Is Stainless Steel?

Stainless steel is an alloy that combines iron with carbon, chromium, nickel, manganese, silicon, phosphorus, sulfur, and nitrogen. A common misconception is that stainless steel does not rust. However, it can. The addition of chromium and other elements provides corrosion resistance by forming a thin layer of chromium oxide on the surface. This protective layer can be compromised, but it naturally regenerates, making stainless steel appear resistant to rust and staining.

how to remove rust from stainless steel sinks - stainless steel sink cleaner - before and after - 2018

How Does This Affect Your Stainless Steel Sink?

Although stainless steel sinks are durable and easy to maintain, they still require proper care to prevent rust stains and maintain their shine. Regular cleaning is essential to keep them looking their best. Neglecting maintenance can result in dullness, discoloration, and rust stains. To preserve the appearance of your sink, wipe it dry after use to prevent water spots and use a non-abrasive stainless steel sink cleaner for regular upkeep.

If your sink is made of high-quality stainless steel, the rust you see is likely surface staining rather than deep corrosion. Common causes of rust stains on a stainless steel sink include:

  • Leaving cast iron or other metal pans soaking in the sink
  • Forgetting utensils or flatware in the sink
  • Storing metal cans (pet food, vegetables, etc.) in the sink
  • Presence of iron in your water supply (consider installing an iron filter)
  • Certain dish soaps, especially those stored in metal containers
  • Leaving wet sponges or colored towels in the sink

How to Remove Rust from Stainless Steel Sinks

To effectively remove rust from stainless steel sinks, use a non-scratching, mild abrasive stainless steel sink cleaner such as Bar Keepers Friend Cleanser, Bar Keepers Friend Soft Cleanser, or Bar Keepers Friend Stainless Steel Cleaner & Polish.

Steps to Remove Rust Stains:

  1. Turn on warm water and wet the rust-stained area of your stainless steel sink.
  2. Sprinkle, squirt, or spray your chosen Bar Keepers Friend cleaner onto a non-abrasive cloth or sponge.
  3. Rub the cleaner onto the affected area, following the direction of the metal’s grain to avoid scratching.
  4. Do not let the cleaner sit on the sink’s surface for more than one minute.
  5. If rust stains persist, rinse and repeat, applying more pressure if necessary.
  6. Thoroughly rinse the sink with warm water.
  7. Use a soft towel to dry the sink completely and prevent water spots.

What Not to Use on a Stainless Steel Sink

While stainless steel is durable, certain substances and tools can damage its protective layer or scratch its surface. Avoid the following:

  • Chloride-based cleaners (e.g., those containing chlorine, bromine, fluorine, or iodine), which can strip the protective chromium oxide layer.
  • Steel wool or metal brushes, which scratch the surface and leave behind particles that can rust.
  • Rubber dish mats, which trap moisture and cause stains.
  • Abrasive cleaners, which can damage the stainless steel finish.
  • Metal dish strainers, which can corrode and leave rust stains.
  • Harsh chemicals like alcohol, ammonia, mineral spirits, or lighter fluid, which are corrosive and harmful to stainless steel.
  • Bleach and oven cleaner, which can stain stainless steel. If contact occurs, thoroughly rinse with water before using any other cleaners.
  • Wet sponges, rags, or towels, which can lead to staining if left in the sink for extended periods.
  • Soaking cast iron cookware, which can rust and transfer stains to your stainless steel sink.

Now that you know how to remove rust from stainless steel and maintain your sink’s appearance, it’s time to put this knowledge into practice. We’d love to see your results! Submit your before-and-after photos for a chance to be featured on our Instagram page.


 

About the Author

Felicia Savage is a content strategist, agile marketing enthusiast, and Digital Marketing Director at Bar Keepers Friend. When she isn’t writing about her love for Bar Keepers Friend (or wiping down her stainless steel sinks), you can find Felicia sparring at her muay thai gym, doodling in her sketchbook, or watching silly cat videos on TikTok.

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