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This porosity means that liquid substances can penetrate the surface of the granite, potentially leading to staining and damage.
Sealers are designed to fill in the microscopic pores of your granite countertop, creating a barrier that prevents liquids from seeping in..
Unsealed granite countertops are vulnerable to staining from liquids such as wine, coffee, and cooking oils.
Bacterial Growth Since unsealed granite countertops can absorb liquids, they can also provide a breeding ground for bacteria.
Erosion and Damage Acidic substances like lemon juice, vinegar, and some cleaning products can cause etching on the surface of unsealed granite.