The answer to 'countertop smells bad' is that a smelly countertop is usually caused by a buildup of food, grease, or other organic matter. This can lead to bacterial growth and unpleasant odors. Common symptoms include a sour, musty, or rotten smell coming from the countertop.
To solve the problem, you'll first want to thoroughly clean the countertop using a degreasing cleaner and scrubbing. Make sure to get into all the crevices and corners. If the smell persists, you may need to use a disinfectant or sanitizing solution to kill any lingering bacteria. For stubborn odors, you can try baking soda or vinegar to help absorb and neutralize the smells.