Copper sinks are a popular choice for many homeowners due to their aesthetic appeal and the fact that they are durable. However, some people may be wondering if copper sinks turn green over time.

In this post, we will explore the answer to that question. We’ll take a closer look at the phenomenon of copper sinks turning green and offer some tips on how to care for your copper sink. Keep reading to learn more!

Do Copper Sinks Turn Green?

The simple answer is yes, copper sinks can turn green over time. This is due to the oxidization process, which occurs when the copper reacts with oxygen and water.

The oxidation causes a patina to form on the surface of the sink, which gives it that distinctive green color.

While this process can be aesthetically pleasing in some cases, it is not always desired.

The amount of greening will depend on several factors including the type of metal alloy used, environmental conditions and how often the sink is exposed to water and other elements like soap or food particles.

Additionally, certain manufacturing processes may also influence how quickly or intensely a copper sink turns green over time.

What causes copper sinks to turn green and how can you prevent it from happening?

The green patina is a natural process that occurs when copper comes into contact with water or oxygen. This often happens when the sink is exposed to humidity and air, causing the copper to oxidize and form a greenish-blue coating.

To prevent this from happening, you should keep your copper sink dry by wiping it clean after each use and applying a wax sealant on an annual basis. This will help protect the surface of your sink while also reducing discoloration over time.

Additionally, avoid using harsh abrasive cleaners as these can damage the finish and accelerate oxidation. With proper care and maintenance, your copper sink should retain its original luster for many years to come.

Finally, if you wish to restore your copper sink to its original glory after the green patina has formed, you can use a metal polishing compound or a cleaner specifically designed for copper surfaces. This should help restore the shine and color of your sink.

How to clean and care for your copper sink so that it doesn’t turn green?

Copper is a beautiful and durable material that can discolor over time – often turning green. Luckily, there are several steps you can take to keep your copper sink looking like new for years to come.

First: keep your copper sink dry when not in use. Wipe up any excess water with a soft cloth and ensure the sink is completely dry after washing dishes or using it for other purposes.

Second: Use warm soapy water to clean your copper sink and then rinse with clear water. Make sure to avoid using harsh chemicals or abrasive cleaners that can damage the finish of the metal.

If necessary, use a cleaning product specifically designed for copper sinks to remove stubborn stains and buildup.

Third: Apply a wax or polishing product to help protect the finish of the copper. This will add a layer of protection against oxidation and discoloration and make your sink look even more beautiful.

Finally: Clean your copper sink regularly – at least once every month or two – to keep it looking its best. With these simple steps, you should be able to maintain the beauty of your copper sink for years to come.

FAQs – Do Copper Sinks Turn Green?

Are copper sinks hard to take care of?

The good news is that copper sinks are fairly easy to take care of and maintain. Copper is naturally antimicrobial, meaning it can help kill off bacteria and other germs on its own.

You won’t have to worry about scrubbing away dirt or grime as long as you rinse the sink regularly with warm water and mild soap.

Do copper sinks change color?

Yes, copper sinks can change color over time. The initial bright, shiny finish will eventually turn to a darker, more bronze color as the copper is exposed to water and air.

This process of oxidation is what gives aged copper its unique patina. The rate at which this happens depends on the environment and how frequently the sink is used, but typically it takes several years for a noticeable color difference to occur.

Can you use Bar Keepers on the copper sink?

Yes, Bar Keepers Friend products can be used on copper sinks. It is great for restoring shine and removing tarnishes. Before applying, make sure to clean the sink with mild soap and hot water.

Then rinse it off with warm water and dry it thoroughly. Once the sink is prepared, use Bar Keepers Friend to gently rub it in a circular motion. If needed, you can apply more pressure for tougher stains.

After cleaning, rinse it off with warm water and buff dry with a soft cloth to reveal the sparkle of your copper sink.

How can I make my copper sink look new again?

One of the easiest and most cost-effective ways to make your copper sink look new again is to use an all-purpose cleaner.

Be sure to use a cleaner that is specifically formulated for copper to ensure the best results. To make your sink sparkle, you should scrub it with a soft cloth and a copper cleaner.

This will help to remove any buildup of dirt or debris that has accumulated on the surface.

Should you polish a copper sink?

Regularly polishing your copper sink can help to keep it looking shiny and new.

To polish a copper sink, you should use a specially formulated copper cleaner and a soft cloth. Follow the instructions on the product for the best results.

Polishing your copper sink will help to maintain its shine and luster and protect it from tarnishing. It can also help to keep it looking new for many years.

Finally, you should make sure to keep your copper sink clean and dry to prevent any buildup of grime or dirt.

Wipe it down after each use and dry it with a soft cloth to help keep it looking its best.

Final Words

Copper is a beautiful metal that can add elegance and style to any kitchen or bathroom. However, one common concern about copper is that it may turn green over time. While this color change can occur, there are steps you can take to prevent it or delay the process.
If you’re considering a copper sink for your home, be sure to do your research so you know what to expect in terms of maintenance and care. With proper care, your copper sink will stay looking fabulous for years to come!


Hi there! I'm Scott Biggins, a contributor at I'm also a certified carpenter with 9 year industrial experience in plumbing. What that means for you is that I can deliver DIY solutions to everyday plumbing problems that are both easy to understand and follow. I love helping people solve their plumbing issues, and my hope is that my articles and videos will help make the process a little less daunting.