When granite isn’t sealed correctly, it can become stained — or etched.
Staining happens when a liquid is absorbed into the stone’s pores. On the other hand, etching is a chemical resection between the stone and certain substances. This can include acids, wine, soda, ammonia, and other cleaners.
The chemical will damage the stone, eating away at the granite and dulling the surface. Etch marks cannot be removed like stains.