Yes, granite countertops should be sealed to protect them from stains and damage. Granite is a natural stone, and while it is relatively resistant to staining, it is still porous to some extent. Sealing creates a protective barrier on the surface, preventing liquids from penetrating and causing discoloration or damage.
Proper cleaning and maintenance are also essential for preserving the beauty and longevity of your granite countertops. With regular sealing and care, your granite countertops will continue to enhance your kitchen or bathroom for many years.