Zinc is a relatively soft metal that is easily scratched, but is highly resistant to stains. This makes it easy to remove stains potential zinc countertops, but you should be aware that the sharp, abrasive tools or heavy metal scrapers scratch zinc. Potential stains include hard water stains. Hard water stains are done when the water containing excess mineral evaporates and leaves a residue in the zinc mineral. Acidic cleaning solutions easily remove hard water spots, but will burn zinc countertop. Instead, use neutral pH cleaners and elbow grease.
Instructions to remove hard water stains zinc countertops: mix a few drops of mild dish soap with 1 cup of warm water. Mix until foaming. Dip a sponge in the soapy solution and rub on hard water stains on the counter. Rub vigorously until the hard water stains are gone.
Rinse the sponge with clean water until thoroughly rinsed without soap residue remains. Alternatively, take a clean and moisten sponge. Rub the sponge over the counter zinc to rinse all soap residues if you leave soap residue on the counters that can leave a rainbow-colored film on countertops.
Finally, dry zinc countertops completely with a clean, soft cloth. This will prevent water marks and streaks of development.