Avoid harsh cleansers and abrasives Strong or acidic chemicals and abrasive materials, including sponges, can damage granite. These materials can also dull and break down the sealant that was applied to your countertops. Avoid window cleaners, and cleaners with ammonia, bleach, vinegar or citrus juices. Wipe up spills Reduce the risk of stains from food or liquids by wiping up spills as soon as possible. The oils and dyes from these items can seep into non-sealed stone surfaces or granite surfaces with old sealants that are in need of resealing. Please keep in mind that acidic foods left on your surface can damage or reduce the life of your sealant. Clean with mild dish soap Just use a soft wash cloth, water and a mild dish detergent for general cleaning of the granite. If it needs disinfecting, mix up a solution of 50/50 water and isopropyl alcohol and spray down the counter top with it. Allow it to sit for a few minutes and wipe up with clean water. Dry with a microﬁber towel.