Clean granite surfaces with a mixture of neutral dishwashing liquid and water. If the granite has stains, a powdered whiting product, such as talc, and hydrogen peroxide is also needed. You also need a sponge, a large bowl, a microfiber cloth, tape and plastic wrap.Continue Reading
Add a few drops of neutral dishwashing liquid to a large bowl of warm water, mixing the liquid and water thoroughly until suds form.
Soak a sponge with the cleaning fluid, and then wash the granite surface with the sponge until you remove all dirt and debris. Rinse the sponge thoroughly using hot water, then wipe off the granite surface with the clean damp sponge, removing any suds from the surface. Repeat the process if visible lines of residue remain on the granite or if the finish looks dull. Dry the surface using a microfiber cloth to complete the cleaning.
To combat tough stains, create a poultice consisting of powdered whiting and hydrogen peroxide. Follow the powdered whiting manufacturer's instructions to create a thick paste in a bowl by adding the liquid to the powder.
Apply the paste to the stained area, making the layer about 0.25-inches thick and overlapping the stained area by 0.5-inches. Tape a piece of plastic wrap over the paste and allow the paste to dry, up to 2 days, until hard. Wipe away the paste with a sponge, and then rinse off the surface with clean water before cleaning the area with the neutral dishwashing liquid mixture.