Wash the copper with warm water and mild dish soap
Rinse thoroughly and dry completely
Mix lemon juice and salt into a paste
Apply the paste to the copper surface
Rub gently with a soft cloth or sponge
Let it sit for a few minutes if needed
Rinse off the paste with warm water
Dry the copper immediately with a clean cloth
Buff the surface with a dry microfiber cloth
Use vinegar and salt as an alternative paste
Use baking soda and lemon juice for stubborn tarnish
Avoid abrasive scrubbers that can scratch the copper
Wear gloves to prevent fingerprints
Apply a thin coat of mineral oil or wax after polishing to slow tarnish