Printable Coupon. Perfect Potluck | a free online tool for coordinating meals for groups. How to Clean Off Copper Buildup. Many people are looking for ways on how to clean copper since copper is used in many personal and household items, and house construction materials. Copper is a popular metal used for piping, making jewelry, containers, and other materials. Its use dates back thousands of years and is still in use today. Sometimes, copper oxidizes and forms a blue-green discoloration that builds up on sinks, bowls, or on the copper piping or material itself. This stain is pretty visible because of its color. Step 1 – Use the Vinegar/Flour/Salt Method Cleaning copper will depend on the materials readily available at home. Step 2 – Rub the Copper Build-Up with Salt Place a liberal amount of salt on the stain and rub it with a clean tack cloth or rag. Step 3 – Use the Ketchup Method If ketchup is readily available, apply some to a sponge and use it to rub away the copper residue.
Step 4 – Use the Lemon-Salt Method Lemon has stain-removing properties that can be used to remove copper stains as well. Table Plan software - perfect table seating for weddings and events.