Stainless steel sinks are known for their strength, resistance to corrosion, and modern appearance. However, even the best stainless steel can develop rust spots over time due to improper maintenance or contact with other metals. The good news is that rust on stainless steel is usually surface-level and can be removed easily.
In this guide, Shunhan Kitchen & Bath Technology Co., Ltd., a professional stainless steel sink manufacturer, shares effective ways to remove rust safely and restore your sink’s bright, clean finish.
Despite its name, stainless steel is not completely immune to rust. The “stainless” property comes from a chromium oxide layer that forms naturally on the surface. When this protective film is damaged or contaminated, rust may appear.
Common causes of rust include:
Contact with iron or steel objects like cookware, sponges, or tools that transfer particles.
Standing water or high humidity, which limits oxygen exposure needed to maintain the protective layer.
Use of bleach or harsh cleaners that corrode the surface.
Salt or acidic residues left unwashed for long periods.
Understanding the cause helps you treat rust correctly and prevent it from returning.
Before you start, gather safe, non-abrasive cleaning supplies:
| Material | Purpose |
|---|---|
| Baking soda | Gentle abrasive cleaner |
| White vinegar | Dissolves rust and mineral deposits |
| Lemon juice | Natural acid for tough spots |
| Soft sponge or nylon pad | Cleaning without scratching |
| Microfiber cloth | Drying and polishing |
| Warm water | Rinsing after treatment |
Avoid steel wool, wire brushes, or chlorine bleach, as they can worsen corrosion or create new rust spots.
Start by washing the sink with mild dish soap and warm water to remove grease, debris, and dirt. Dry it completely to see where the rust spots are located.
Mix 3 parts baking soda with 1 part water to create a paste. Spread it evenly over the rusty areas. Let it sit for 15–20 minutes to soften the rust.
Use a soft sponge or nylon scrub pad to rub the affected areas along the grain of the stainless steel. Avoid circular motions that can create fine scratches.
You’ll notice the rust beginning to lift away as you scrub lightly.
If the stain persists, apply white vinegar or lemon juice directly onto the rust and let it sit for another 10–15 minutes.
The mild acid helps dissolve the remaining oxidation without harming the metal surface. Rinse thoroughly after cleaning.
Once rust removal is complete, rinse the sink thoroughly with warm water. Wipe it completely dry with a microfiber cloth to prevent new water spots or rust formation.
If your sink has heavier rust buildup, follow this enhanced method:
Sprinkle baking soda directly on wet rusty areas.
Pour white vinegar over it to trigger a gentle fizzing reaction.
Let the mixture sit for 10–20 minutes to loosen the rust.
Scrub along the grain using a soft pad.
Rinse, dry, and inspect. Repeat if needed.
This natural chemical reaction removes oxidation safely and restores brightness to your Shunhan stainless steel sink.
Once you’ve removed the rust, it’s important to prevent it from returning. Follow these maintenance tips from Shunhan:
Rinse and dry after every use: Standing water encourages oxidation.
Avoid storing metal cookware or tools in the sink: These transfer iron particles.
Never use bleach or chlorine-based cleaners: They break down the protective layer.
Polish regularly with stainless steel oil: Maintains a moisture-resistant coating.
Use a sink grid: Protects the surface from scratches and trapped debris.
A few seconds of daily care can prevent rust entirely and keep your sink shining for years.
Shunhan Kitchen & Bath Technology Co., Ltd., based in Jiangmen, Guangdong, is a trusted manufacturer specializing in stainless steel sinks for residential and commercial kitchens.
Our advantages include:
SUS304 food-grade stainless steel for maximum corrosion and rust resistance
Advanced CNC forming and brushed surface technology for easy cleaning
Variety of models: Top Mount, Undermount, Apron, RV, and Custom Sinks
OEM/ODM service to meet global customization needs
Strict quality inspection ensuring every sink is durable and rust-resistant
Our sinks are engineered not only to resist rust but also to be easily restored if exposed to harsh conditions.
If rust spots cover large areas or return frequently despite cleaning, there may be a chemical or environmental issue — such as hard water or improper cleaners. In such cases:
Consider installing a water softener if your area has hard water.
Seek professional refinishing to re-brush or polish the sink surface.
Contact Shunhan’s technical team for product-specific advice or OEM finishing solutions.
Removing rust from a stainless steel sink is simple when done correctly. With baking soda, vinegar, or lemon juice, you can restore the surface safely without harsh chemicals. Consistent rinsing, drying, and polishing will keep your sink free of rust and looking new.
For long-term durability and low maintenance, choose Shunhan stainless steel sinks, crafted with premium SUS304 material and advanced surface technology to ensure a lasting shine and worry-free performance.
