Cleaning Granite Countertops With Vinegar. Vinegar is one of the most acidic products you can find and can cause significant damage to your granite countertops or other surfaces. The best way to clean granite counters is to choose a countertop cleaner formulated for them.
Glass cleaners bleach ammonia and acids such as lemon or vinegar can strip the countertop sealant and leave granite more receptive to stains. Do not use harsh cleaners such as Comet or bleach to remove stains from granite. Now comes the crux of the matter.
You want to avoid any type of acidic cleaner on a granite surface.
They literally eat through the surface of your stone etching or burning into your countertop. In addition over time vinegar can cause etching in the granite itself. Neither Vinegar nor Lemon Juice Should be Used on Granite Countertops. Vinegar and water is an often used cleaner for granite countertops.