How to Clean and Maintain Granite Countertops

Granite is a geological powerhouse that brings unmatched durability and aesthetic depth to your kitchen, but its natural porosity is a common point of failure for homeowners who treat it like laminate. When granite is sealed properly, it resists liquids and bacteria with ease; when neglected, it absorbs oils, lemon juice, and wine, leading to permanent discoloration that no amount of scrubbing can undo. Done well, maintenance involves nothing more than a daily wipe-down and a yearly check to ensure the sealant remains intact. If you respect the stone's physical needs by avoiding acidic cleaners and using cutting boards, your counters will outlast the rest of your kitchen cabinetry. This guide covers the essential rhythm of cleaning and the infrequent but vital process of resealing.

  1. Wipe Down Without Damage. Mix a few drops of mild dish soap into a spray bottle filled with warm water. Spray the surface and wipe it down with a soft microfiber cloth, followed by a dry cloth to prevent streaks.
  2. Clear the Workspace. Remove all small appliances, knife blocks, and decor from the surface. A clean slate is necessary to reach every square inch of stone during the sealing process.
  3. Strip Away All Residue. Before sealing, the stone must be free of all debris and oils. Use a granite-specific cleaner or a mixture of isopropyl alcohol and water to remove stubborn grease residues.
  4. Check the Seal's Status. Place a small amount of water in an inconspicuous area and wait 15 minutes. If the water beads up, your current seal is fine; if it darkens the stone, the sealer has worn off and you must proceed to resealing.
  5. Lock In the Protection. Spray a high-quality stone sealer evenly across the countertop in small sections. Let it sit for the time recommended by the manufacturer, then buff it off with a clean, dry microfiber cloth until the surface is clear.
  6. Let It Set Undisturbed. Allow the sealer to cure undisturbed for at least 24 hours. Avoid placing heavy items or wet containers on the counters during this window to ensure a strong bond.