Gently remove loose dirt and debris off coins using camel hair or artist brushes. Keep coins away from stiff brushes that could scratch them.
Coin cleaning with distilled water is safe and gentle. Rinse coins after brushing to eliminate grime and residue. Tap water may include salts and contaminants that damage coins.
Used sparingly, gentle, non-abrasive soap will clear tenacious dirt and filth from coins. Gently clean the coin with a small bit of mild soap in distilled water and a delicate brush. Rinse well with distilled water.
To clean specific sections of a coin or gently remove dirt from nooks or fine details, use cotton swabs. Rubbing too hard might cause abrasions.
Soft, lint-free microfiber cloths are great for gently drying coins after cleaning. Avoid scratching coins by patting them dry with a microfiber cloth.
Remove greasy or sticky remnants off coins sparingly with rubbing alcohol. Apply a tiny amount to a cotton swab and gently rub the affected area. Rinse with distilled water and pat dry.
Hold money in plastic trays or containers while cleaning. This minimizes drips and provides a controlled cleaning environment.
Before and after cleaning, coins must be examined with a 5x to 10x magnifying lens or loupe. Inspect details, identify filth or damage, and evaluate cleaning performance.