We’re often asked why pure copper jewellery changes colour, and whether that means something has gone “wrong”. The short answer is no. Pure copper is meant to change with you. A pure copper bracelet or copper ring will naturally darken in tone over time because copper reacts with air, moisture, and everyday life. That evolving finish is called patina, and it’s one of the most authentic things about wearing copper.
Copper jewellery patina: what it is and why copper changes colour
Patina is the natural surface layer that forms on copper as it reacts with oxygen, humidity, and what it comes into contact with day to day. On jewellery, it might look like a richer brown, a darker antique tone, or subtle variations across the surface.
The way your copper jewellery ages depends on where you live (humid vs dry), how often you wear it, and things like sweat, natural oils, skincare, salt air, and heat.
That’s why no two pieces of pure copper jewellery age the same way — and why a well-worn copper piece often looks better, not worse.
How to clean copper jewellery naturally (white vinegar and salt method)
If you love the look of natural ageing, you can leave your copper jewellery alone and simply wipe it dry after wear. But if you prefer a brighter shine now and then, the easiest cleaning method is the one we recommend for A Better copper jewellery: white vinegar and salt, used with a soft cloth.
To clean your copper jewellery this way, mix 1 tablespoon of white vinegar with 1/2 teaspoon of salt in a small cup. Soak a soft cloth in the mixture, then gently wipe your copper bracelet or copper ring with the damp cloth until the shine lifts. Once it looks brighter, rinse the jewellery under water and dry it thoroughly with a towel.
The reason this works comes down to chemistry. Copper looks dull when a thin layer of oxidation forms on the surface. Vinegar is mildly acidic (acetic acid), and that gentle acidity helps loosen the oxidised layer so it can lift away more easily. The salt helps support the process and improves how effectively the tarnish releases from the surface while you wipe. It’s a simple, traditional approach that avoids harsh chemicals and keeps things gentle.
One important habit here is the rinse-and-dry finish. If you leave any acidic mixture on the surface or let moisture sit, copper can re-oxidise quickly. A proper rinse and thorough dry helps your jewellery settle back into its natural rhythm.
Other ways to clean copper jewellery (same principle, different options)
If you don’t have vinegar on hand, you can use the same idea with other mild acids. Lemon juice is a popular alternative because it’s naturally acidic and can help lift surface oxidation when used with a soft cloth and then rinsed and dried. Some people also use tomato-based options like ketchup for copper, again because mild acids can help loosen tarnish. The key is to keep it gentle, keep it brief, rinse well, and dry fully.
You’ll sometimes see people use tomato-based options (like ketchup) for copper, again, it’s that mild-acid principle doing the work. And if you ever use a store-bought copper cleaner, the same rules apply: go gentle, avoid harsh abrasives, rinse well, and dry completely.
Everyday copper jewellery care: showering, sweating, storing, and skin marks
A few everyday habits make a big difference to how your copper jewellery looks over time. It’s best to remove your copper bracelet or ring before showering, swimming, or doing physical activity that causes heavy sweating. Water and sweat can speed up oxidation, and frequent exposure usually means your piece will darken faster.
Storage matters too, because copper is a softer metal. If you want to avoid scratches or bending, store your copper jewellery in a dry, cool place — ideally in a jewellery box or a soft pouch where it won’t rub against harder items.
You might also notice temporary skin marks from copper jewellery, especially in warm or humid conditions. This is common, harmless, and washes off easily with some soap and water. Many people find it happens less over time as the surface develops a more stable patina with regular wear.
Pure copper jewellery at A Better
A Better’s copper jewellery is crafted from pure copper and designed to be worn daily, letting it age naturally as you go.
Our copper bracelets have a thin copper-alloy plating on the surface, designed to slow the rate at which the outer layer reacts with air and moisture. Over time, that plating will naturally fade with wear, but it doesn’t affect the pure copper underneath, and your bracelet remains pure copper at its core.
Copper Jewellery Care Frequently Asked Questions
What is patina on copper jewellery?
Patina is the natural surface layer that forms on copper jewellery as it reacts with air, moisture, and everyday wear. It often appears as a darker tone and natural colour variation.
Should copper jewellery be polished regularly?
No. Copper jewellery only needs polishing if you prefer a brighter look. You can polish occasionally or let it age naturally. Both are normal.
Why does copper sometimes leave green marks on the skin?
Copper can leave a temporary green mark when it reacts with moisture on your skin, such as sweat, humidity, or water. The green tinge is harmless and washes off easily with soap and water.
How do I clean pure copper jewellery safely?
Mix 1 tablespoon of white vinegar with 1/2 teaspoon of salt. Dip a soft cloth in the mixture, wipe the copper, then rinse thoroughly and dry completely.
Will copper jewellery stop changing if I clean it?
No. Cleaning removes surface tarnish, but pure copper will continue to oxidise and develop patina again with wear.
