Granite and Marble CountertopsAcidic solutions like vinegar can damage the polished surface of natural stone by etching the glossy finish and eating away the natural stone. The etching causes a rough texture that creates a dull, cloudy surface.
Cast Iron CookwareOnce it penetrates the seasoning, the vinegar will start to erode the iron and cause unsightly pits in your cookware which make your pan prone to rusting.
Hardwood FloorsThe acids in vinegar attack and eat away at these finishes, eventually making them look dull, dingy and cloudy much like the stone countertops.