How to Deep Clean Granite Countertops

When Does Granite Need a Deep Clean?

Even with daily wiping, granite countertops accumulate grease buildup, soap film, and dull residue over time. A deep clean every 1–2 weeks restores the stone's natural luster and prepares the surface for resealing when needed.

What You'll Need

Weiman Granite & Stone Daily Cleaner and Sealer Kit — pH-balanced, safe for deep cleaning
Microfiber cleaning cloths — for scrubbing and buffing
Dawn Platinum Dish Soap — for cutting through grease
Warm water
Spray bottle
Soft-bristle brush (optional, for grout lines or textured granite)

Step-by-Step: Deep Cleaning Granite Countertops

Step 1: Clear and Prep

Remove everything from the countertop. Wipe away loose crumbs and debris with a dry cloth before applying any liquid.

Step 2: Degrease the Surface

Mix a few drops of Dawn dish soap with warm water in your spray bottle. Spray generously over the entire surface and let it sit for 3–5 minutes to break down grease and cooking residue.

Step 3: Scrub Gently

Using a damp microfiber cloth, scrub the surface in small circular motions. Pay extra attention to areas near the stove, sink, and edges where buildup tends to concentrate. For textured granite, a soft-bristle brush can help reach into the grain.

Step 4: Rinse Thoroughly

Wipe down the entire surface with a clean, water-dampened cloth to remove all soap. Repeat if needed — soap residue left on granite creates a dull film over time.

Step 5: Apply a Granite Cleaner

Spray the Weiman Granite Cleaner directly onto the surface and wipe with a fresh microfiber cloth. This step removes any remaining residue and adds a light protective layer.

Step 6: Buff to Shine

Use a dry microfiber cloth to buff the surface in wide, sweeping motions until it gleams. This removes streaks and brings out the natural depth of the stone.

Tackling Stubborn Buildup

For hardened grease or sticky residue, try this method:

Apply a small amount of dish soap directly to the spot.
Cover with a damp cloth and let it sit for 10 minutes.
Gently scrub and rinse. Repeat if necessary.

Never use: baking soda, vinegar, bleach, or abrasive scrubbers on granite. These damage the sealant and can etch the stone surface.

Should You Reseal After Deep Cleaning?

Deep cleaning is the perfect time to check your sealant. Sprinkle a few drops of water on the clean, dry surface. If the water beads up, the seal is intact. If it absorbs within a few minutes, it's time to reseal. The Weiman Granite & Stone Sealer (included in the kit) makes this easy to do at home.

How Often Should You Deep Clean Granite?

Deep clean your granite countertops every 1–2 weeks, or more frequently in busy kitchens. Pair this with daily light cleaning for best results.

Final Thoughts

A proper deep clean keeps granite looking rich and polished for years. The key is using the right products — pH-neutral, stone-safe formulas — and taking the time to rinse and buff thoroughly. Your granite will thank you.

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