The answer to 'countertop grimy' is that a grimy countertop is usually caused by a buildup of dirt, grease, and other residues over time. Symptoms include a dull, hazy appearance and a rough or sticky texture. To solve this, you can try DIY cleaning methods, but for stubborn grease or stains, you may need to call in a professional cleaning service.
For DIY cleaning, start by wiping down the countertop with a mild soap and water solution. You can also try baking soda or vinegar-based cleaners. Scrub gently with a soft cloth or sponge, taking care not to scratch the surface. If the grease and grime don't come up, you may need a stronger degreasing agent or more intensive scrubbing. For best results, let the cleaner sit for a few minutes before wiping.