Wear gloves to avoid adding oils from your hands
Rinse the coins gently with distilled water
Soak the coins in distilled water for several hours or overnight
Change the water if it becomes dirty
Gently brush loose rust with a soft toothbrush
Use a wooden toothpick to remove stubborn debris carefully
Soak the coins in white vinegar for a short time if needed
Rinse thoroughly with distilled water after vinegar
Neutralize acid residue by soaking in baking soda and water
Rinse again with distilled water
Pat dry with a soft lint-free cloth
Let the coins air dry completely
Avoid scrubbing with abrasive materials
Avoid metal brushes or harsh chemicals
Store the coins in a dry place after cleaning