10 Substances That Will Stain Your Granite Countertops
Aug 27, 2016 · Granite isn’t a particularly porous stone, but, like all natural stone surfaces, it does let liquid in if it isn’t properly sealed. To tell if it’s time to re-seal your granite countertops, perform a safe and simple water test. Sprinkle a few drops of water on your countertop. If the water beads up, then your seal is probably going strong.