Stone Countertop Care: Granite, Marble, Quartzite & Soapstone

Granite, marble, quartzite, and soapstone each bring their own character to a kitchen — and each has its own rules for staying beautiful. Here's what it actually takes to keep a natural stone countertop looking as good as the day it was installed.

Sealing Needs by Stone Type

Granite. Needs a penetrating sealer to stay stain-resistant. Lighter granites typically need resealing every 1 to 2 years, while denser, darker granites can often go 2 to 4 years between applications.

Marble. The most porous of the natural stones, marble should be sealed at least once annually — and in a busy kitchen, every 6 to 12 months is more realistic. Lighter marbles like Calacatta need sealing more often than darker varieties.

Quartzite. True quartzite is denser than marble and generally needs resealing every 1 to 2 years. Be sure your fabricator confirms it's genuine quartzite — marble is frequently mislabeled as quartzite at the slab yard.

Soapstone. Too dense for a penetrating sealer to be effective — instead it's conditioned with food-grade mineral oil. Oil new soapstone every 1 to 3 months until it darkens and stabilizes, then far less frequently after that.

Everyday Cleaning: Do's and Don'ts

Stick to mild soap and water. A soft cloth with mild dish detergent is all any natural stone needs for daily cleaning — harsh chemicals do more harm than good.

Avoid acids and abrasives. Lemon juice, vinegar, tomato sauce, and other acidic foods can etch marble and quartzite on contact. Skip ammonia- or acid-based cleaners and anything abrasive.

Protect the surface. Use coasters under glasses, trivets under hot pans, and wipe up spills right away — especially oil, wine, and citrus — rather than letting them sit.

How to Know When It's Time to Reseal

Try the water-drop test. Pour a tablespoon of water near the sink or cooktop, where wear is greatest. If it darkens the stone and doesn't fade back within 2 to 3 minutes after wiping, it's time to reseal.

Test with oil, too. Oil can penetrate a sealer that's still repelling water, so repeat the test with a few drops of cooking oil for a more complete picture.

Etching isn't staining. A dull spot from an acidic spill on marble is surface damage, not a stain, and resealing won't fix it — that calls for professional polishing or restoration.

Choosing the right stone is only half the equation — knowing how to care for it is what keeps it beautiful for decades. If you're planning a kitchen or bath renovation and want guidance on the right stone and finish for your lifestyle.