We’re all familiar with the light green color on the Statue of Liberty, which, of course, is made from copper. What is this green color, and will your copper sink turn green?
Known as verdigris, this green pigment happens to copper, brass, and bronze when it’s exposed to seawater or salt air at the time of weathering.
Will this happen to your copper sink?
It’s possible but highly unlikely. Most of the copper kept indoors will not develop verdigris, but if you live near the ocean and your copper sink is installed in an area that gets exposed to the salt air, you may see verdigris develop.
We’ve also seen some soaps cause green spots on copper. Don’t worry though, these green spots aren’t harmful, and some customers welcome this patina.
If you notice a few verdigris spots start to develop on your sink, simple soap and water will remove them in most cases. If the spots are more stubborn then you can use store bought copper cleaner, vinegar or, or even lemon juice to remove the patina. Keep in mind that by removing the patina you are restoring the metal back to its original state, which is like a bright shiny new penny.
But never fear! These shiny spots will develop a new patina over time and eventually blend in with the rest of the sink color.
Remember, copper has a living finish, and the color will always be changing. Nothing is permanent, so enjoy the natural characteristics and how your sink will evolve over time.
