Rinse pennies under warm water to remove loose dirt
Wash with mild dish soap and warm water using your fingers or a soft cloth
Scrub gently around ridges and lettering with a soft-bristled toothbrush
Rinse thoroughly to remove all soap residue
Dry immediately with a soft towel to prevent spotting
If tarnished, soak pennies in white vinegar for 5–10 minutes
Scrub lightly with a soft toothbrush during or after soaking
Rinse well with water
Dry immediately with a soft towel
For stubborn tarnish, soak in a small amount of ketchup for 5–10 minutes
Scrub gently, then rinse thoroughly
Dry immediately with a soft towel
For best long-term results, store dry pennies in a breathable container or coin sleeve