The answer to 'countertop stained' is that countertops can become stained for a variety of reasons, including spills, water damage, or even just everyday use. Stains can range from minor discoloration to deep, set-in marks that are difficult to remove. The solution often depends on the type of countertop material and the severity of the stain.
For minor stains on non-porous surfaces like granite or quartz, a gentle cleaning with a specialized countertop cleaner and some elbow grease may be all that's needed. However, for more stubborn stains or porous materials like marble or butcher block, you may need to try more intensive cleaning methods or even seek professional help.