Why Copper Tarnishes Over Time

Copper is a beautiful and durable metal, but it naturally tarnishes when exposed to air, moisture, and oils from our hands. This process, called oxidation, creates a dark or greenish layer known as patina. While patina can sometimes add character, many people prefer their copper cookware, jewelry, and décor items to look bright and shiny. That’s why learning how to clean copper naturally is essential.

Best Natural Methods for Cleaning Copper

1. Lemon and Salt

This is one of the most popular home remedies. The citric acid in lemon cuts through tarnish, while salt acts as a gentle abrasive.

• Cut a lemon in half.
• Sprinkle salt on the cut side.
• Rub the lemon directly onto the copper surface.
• Rinse with warm water and dry with a soft cloth.

2. Vinegar and Salt Paste

Vinegar contains acetic acid, which effectively removes oxidation from copper.

• Mix equal parts vinegar and salt to form a paste.
• Apply the paste to the copper item using a soft cloth.
• Rub gently until tarnish disappears.
• Rinse and dry completely.

3. Baking Soda and Lemon Juice

Baking soda adds extra scrubbing power while lemon juice provides acidity.

• Combine 1 tablespoon baking soda with lemon juice to form a thick paste.
• Apply on the copper surface using a sponge.
• Let it sit for 5 minutes before rinsing off.
• Buff dry with a microfiber cloth.

4. Ketchup or Tomato Paste

Surprisingly, the natural acids in tomatoes can also clean copper effectively.

• Apply a thin layer of ketchup to the copper surface.
• Let it sit for 10 minutes.
• Rinse thoroughly and dry with a soft cloth.

Step-by-Step Guide to Keep Copper Shiny

1. Wash the item with mild soap and water.
2. Choose a natural cleaning method (lemon, vinegar, baking soda, or ketchup).
3. Rinse thoroughly with warm water.
4. Dry immediately to avoid water spots.
5. Polish with a soft cotton or microfiber cloth.

Pro Tips for Long-Lasting Shine

• Always dry copper items immediately after washing.
• Avoid harsh chemicals that can damage the surface.
• Store copper in a dry environment to prevent quick tarnishing.
• Apply a thin coat of mineral oil to slow down oxidation.

Frequently Asked Questions

Can I use vinegar to clean copper every time?

Yes, vinegar is safe for occasional use, but don’t overuse it as it may wear down the copper finish with time.

Does toothpaste clean copper?

Yes, non-gel toothpaste with mild abrasives can be used for small copper jewelry pieces.

How often should I clean copper cookware?

Depending on use, you should clean and polish your copper cookware every 1–2 months to maintain its shine.