The Best Method to Remove Rust Stains From a Sink

Rust stains in your sink can be annoying, especially if you take pride in a clean and sparkling kitchen. Whether you’re dealing with rust spots in a stainless steel sink or rust in a kitchen sink of another material, you don’t have to resort to harsh chemicals or abrasive scrubbers. With just a few household ingredients, you can remove sink rust safely and effectively.

In this article I’ll show you the easy and fast method that I use anytime I get rust spots in my sink.

This is the before photo of my sink showing three small rust spots. I know, it isn’t that bad, but they still bug me so I needed to remove them.

Why does rust appear in your sink?

Before diving into the solution, it helps to understand why rust develops in the first place. Rust in sinks is typically caused by contact with wet metal objects for a prolonged period. In my case it’s usually a wet sheet pan that sits on the bottom of the sink for too long. Hard water with high iron content can also contribute to rust formation.

The Best DIY Method to Remove Rust from Your Sink

One of the safest and most effective ways to remove rust from a kitchen sink is by using a simple combination of baking soda and vinegar. This natural cleaning solution is gentle on surfaces but tough on the rust stains.

Some of the links in this post are affiliate links, meaning, at no additional cost to you, I will make a commission if you click through and make a purchase. Thanks for the support!

What You’ll Need

Step-by-Step Guide to Removing Rust Stains

For this tutorial I’ll show how I removed this small rust spot in my stainless steel kitchen sink.

Step 1 – Create a cleaning paste

In a small bowl, mix three parts baking soda with one part vinegar. This will create a paste that you can apply to the rust spots. I only had a few spots in my sink so I went with 3 tbsp of baking soda and 1 tbsp of vinegar. You can adjust the measurements based on what you need.

When you mix the vinegar into the baking soda it will fizz just like the volcanos we made as kids!

Step 2 – Apply the paste to the rust spots

Using a spoon or your fingers, spread the paste generously over the rust spots in your sink.

Step 3 – Scrub the stain

Take your scrubbing pad and gently scrub the rusted areas in circular motions. For tougher stains apply a little extra pressure but avoid using steel wood or anything too abrasive as it can scratch the sink’s surface.

I’m usually able to remove the rust very easily using this method but if your rust spots are more stubborn let the paste sit for 10-15 minutes before you scrub.

Step 4 – Rinse the sink

Once the rust stains are removed, rinse the sink thoroughly with water.

That’s all it takes to remove those rust spots from your sink!

How it works…

If you’re a nerd like me and want to understand the chemistry behind using baking soda and vinegar for rust removal here is a little snippet…

Baking soda (sodium bicarbonate) and vinegar (acetic acid) create a powerful cleaning reaction when combined. Here’s how it works:

Breaking Down Rust: Rust (iron oxide) forms when iron reacts with oxygen and water. The acetic acid in vinegar helps dissolve the iron oxide by breaking its chemical bonds.
Fizzing Reaction: When baking soda and vinegar mix, they create carbon dioxide gas, which produces fizzing. This bubbling action helps lift the loosened rust from the sink’s surface.
Gentle Abrasion: Baking soda acts as a mild abrasive that further helps scrub away rust without damaging the sink. By leveraging this natural chemical reaction, you can effectively remove rust stains without harsh chemicals.

Preventing Rust in Your Sink

Now that your sink is clean, here are some tips to keep rust from coming back.

Avoid leaving wet metal objects in the sink for long periods.
Wipe down your sink after use to prevent moisture buildup.
Use a sink protector to minimize direct contact between metal items and the sink surface.
Consider a water softener if you have hard water with high iron content.

By following these simple steps you can keep your sink rust free and looking good as new. But no worries if you get rust in your sink again. Now you know how easy it is to clean with baking soda and vinegar.