Limestone surfaces are a popular choice for renovations and improvements providing the luxurious expensive look of marble but an a more affordable old-world price. Most limestone is usually white or off-white in color with unique and naturally occurring patterns throughout the stone.
Beautiful as they are, they come with a downside that they require more care than other stone types, such as granite. This is because compositionally, limestone is more porous and sensitive to acids attack. The porosity makes it more prone than other stains and discoloration. (We once were asked to seal a brand new set of limestone stairs after removing a coffee stain… it took 6 seal applications to finally seal the stone… and each day the property manager dropped a new cup of coffee as a test.) Once sealed it usually just takes another annual application to maintain, but the first application is a doosey. Once sealed spills are easily cleaned up without staining.
Read more here: https://marblelife.com/posts/01-16-2019-cleaning-limestone-surfaces/