Deep cleaning is a process that involves removing dirt, grime, and stains from the pores of the marble surface. There are several techniques and methods for deep cleaning heavily soiled or stained marble, depending on the severity and type of the stain. Some common methods include using a poultice, steam cleaning, or using a specialized marble cleaner
. It is essential to follow the manufacturer's instructions and use the appropriate tools and products to avoid damaging the marble surface.