old coins These are remnants of bygone eras, each with its own history and character. Preserving these historical artifacts is a passion and art for collectors. But, clean old coins It’s not a task that should be taken lightly.
Possible improper cleaning damage These valuable pieces are lost irrevocably. This article provides: Detailed guide on how to clean old coins safely and effectively.
Before proceeding with cleaning, in many cases it is very important to understand: patina (the surface layer that forms on coins over the years) is part of the historical and aesthetic value of the coin. Many collectors and experts advise against cleaning old coins unless absolutely necessary.
How to clean old coins
- Determine the value: Before cleaning any coin, research its value and rarity. For high-value items, consider consulting a professional before attempting any cleaning.
- Identify the material: Different metals require different cleaning methods. Determine whether the coin is gold, silver, copper, bronze, nickel, or a different material.
- Purified water: For light cleaning, soak the coin in distilled water for a few days, changing it every day. This can help loosen dirt without damaging the coin.
- Soft soap: For a slightly deeper clean, use a mild soap and distilled water. Soak the coin in water, scrub gently with your fingers or a soft-bristled brush, and rinse thoroughly.
- Sodium bicarbonate: Create a paste with baking soda and water and gently apply it to the coin with a soft cloth. Then rinse with distilled water and dry with a soft cloth.
- White vinegar and salt: A solution of white vinegar and salt can be effective for copper coins. Soak the coin in the solution, then carefully rinse and dry.
- Hot water and mild soap: Since gold is a soft metal, a solution of warm water and mild soap is sufficient to clean gold coins. Avoid using abrasive materials.
- Drying: After cleaning, dry the coins with a soft cloth or let them air dry. Avoid rubbing them as this may cause scratches.
- to store: Store coins in a cool, dry place. Use coin holders or albums designed to hold coins.
Products you should not use to clean coins
- Avoid harsh chemicals: Never use acidic or corrosive cleaners as they may damage the coin beyond repair.
- Avoid rubbing or scraping: Rubbing or scraping the coin, especially with metal tools, can scratch it and reduce its value.
If you’re not sure how to proceed or if the coin is extremely valuable or rare, it’s best not to clear it. For high value pieces, consider seeking the opinion of a professional numismatist before any cleaning attempt.
In summary, cleaning of ancient coins should be done with care and respect for their integrity.