The answer to 'countertop odor' is that common causes include spills, trapped food particles, mold growth, and bacteria buildup. Symptoms can include persistent smells, even after cleaning. Solutions may involve thorough cleaning, disinfecting, or replacing the countertop in severe cases.
For minor odors, homeowners can try DIY methods like baking soda, vinegar, or lemon juice to absorb and neutralize odors. However, if the odor persists or you suspect mold or bacteria, it's best to call a professional cleaning service to properly identify and address the root cause.