how to clean coins?

TLDR: Cleaning coins requires careful methods to avoid damage and preserve their value. Use gentle techniques like a water bath or ultrasonic cleaner, and consider professional help for valuable coins.

Cleaning coins is a delicate process that can significantly impact their value and integrity. While it may be tempting to make coins look shiny, improper cleaning can lead to irreversible damage, especially for collectibles. The primary goal should be to remove harmful contaminants rather than to restore the coin to a "like new" condition. Methods such as the water bath and ultrasonic cleaner are recommended for safe cleaning, while harsher methods like using isopropyl alcohol or acetone should be approached with caution.

Before cleaning, it's crucial to assess the coin's value and choose an appropriate method based on its material and condition. Avoid harsh chemicals that can cause damage, and for valuable coins, consider seeking professional cleaning services to ensure their preservation. By following these guidelines, collectors can maintain the beauty and integrity of their coin collections effectively.