Here’s the single most important thing to understand about caring for your countertops, and it’s the thing nearly every “countertop care” article gets wrong by lumping the two together: granite and quartz are fundamentally different materials, and caring for one the way you’d care for the other will eventually damage it.
Granite is 100% natural stone — porous, quarried from the earth, and sealed to resist stains. Quartz is engineered: roughly 90 to 95 percent ground natural quartz bound together with polymer resins and pigments. That resin is what makes quartz non-porous and stain-resistant, but it’s also a vulnerability that granite simply doesn’t have. Once you understand that one core difference — porous natural stone versus resin-bound engineered stone — almost every care decision follows logically. This guide will walk you through both, side by side, so you know exactly what your specific countertop needs.
The Daily Routine Is the Same — Keep It Boring
Let’s get the easy part out of the way, because it’s the one area where granite and quartz agree. For everyday cleaning, both surfaces want the same thing: a soft cloth or non-abrasive sponge, warm water, and a few drops of pH-neutral dish soap. Wipe, rinse, dry. That’s it. Doing this daily prevents the grime and grease buildup that dulls any stone surface over time.
The reason “boring” matters is that the exciting cleaning products are the ones that cause damage. Skip the abrasive scrubbing pads, the scouring powders, and anything gritty — they’ll scratch quartz resin and wear down granite’s sealer. We’ll get into the specific chemicals to avoid for each material below, because that’s where granite and quartz part ways dramatically.
Granite: Respect the Fact That It’s Porous
Granite’s defining trait is porosity. As a natural stone, it has microscopic channels that will absorb liquids if the protective sealer wears thin — and that’s where granite-specific care comes in.
The water test most homeowners never do. You don’t need to reseal granite on a rigid annual schedule, despite what many articles claim. Instead, test it. Drip a tablespoon of water onto the surface and watch. If it beads up and sits, your seal is intact. If it soaks in and darkens the stone within a few minutes, it’s time to reseal. High-use zones around the sink and cooktop wear faster than the granite by your backsplash, so you can often reseal just the problem areas rather than the entire surface — a money-saving detail competitors rarely mention.
Granite’s real enemy is acid, not heat. Granite handles heat beautifully — it’s natural stone with no resin to break down, so a hot pan won’t scorch it the way it would quartz. The genuine threat to granite is acidic spills: wine, citrus juice, coffee, tomato sauce, and many common cleaners. On a porous surface with worn sealer, these can etch or stain. This is why you should never use vinegar, lemon, ammonia, or bleach on granite — they break down the sealer and, over repeated use, dull the polish. Wipe acidic spills immediately rather than letting them dwell.
Oil stains need a poultice, not a scrub. Because granite is porous, oil-based stains (cooking oil, grease, butter) penetrate rather than sit on top. Scrubbing won’t pull them out. The fix is a poultice: make a paste of baking soda and water, spread it over the stain, cover it with plastic wrap, and let it draw the oil out overnight before wiping clean. Avoid storing your olive oil bottle directly on granite for this exact reason — that ring at the base of the bottle is a slow-motion stain.
Quartz: The Resin Is the Whole Story
Everything that makes quartz easy also makes it vulnerable in one specific way: heat. The resin binding the stone together is a polymer, and polymers don’t like high temperatures.
Quartz is heat-resistant, not heatproof — and this is where most damage happens. Manufacturers are clear that quartz tolerates only moderate heat before the resin begins to change chemically. Estimates vary by manufacturer, but the resin generally starts to degrade somewhere in the range of 150°F on the low end up to about 300°F, and a pan straight off a burner or out of the oven blows past that instantly. The result is a permanent yellow, brown, or white scorch mark, or a hairline crack from thermal shock — the sudden temperature change causing the resin to expand faster than the surrounding material. No cleaning product fixes resin burn; it’s often a replacement, not a repair.
So the rule for quartz is absolute: always use a trivet or hot pad. And here’s the part nobody warns you about — it’s not just pots and pans. Small appliances that generate sustained heat are a stealth threat. Air fryers, slow cookers, Instant Pots, coffee makers, and toaster ovens parked directly on quartz radiate heat for hours, slowly cooking the resin underneath. Put a trivet or heat mat under them too, or position them so they vent away from the surface. In the bathroom, the same applies to curling irons and flat irons — lay down a heat mat.
Quartz is stain-resistant, but a few specific things still stain it. Because quartz is non-porous, it shrugs off most spills. But it’s not invincible. Permanent markers, certain dyes, nail polish remover, and a handful of harsh chemicals can mar the surface, so wipe these up fast. And critically, quartz cannot handle the harsh chemicals people reach for on tough messes. Oven cleaners are among the worst offenders — many popular brands will permanently damage quartz, so keep them well away. Bleach, drain cleaner, and high-pH degreasers break down the resin binder. If soap and water won’t cut it, use a cleaner formulated specifically for quartz rather than reaching under the sink for something stronger.
Never reseal quartz. This is a common and wasteful mistake. Because quartz is already non-porous and essentially self-sealed by its resin for life, sealing products do nothing but leave a film. Save your money and your effort.
Both Surfaces: The Sunlight Detail and the Cutting Board Truth
A couple of points apply to both materials but get overlooked.
Direct sunlight fades quartz. This one surprises people. Prolonged UV exposure can gradually fade or yellow quartz, especially lighter colors, because the resins and pigments aren’t UV-stable the way natural granite is. If your counters get strong, direct afternoon sun, consider UV-filtering window film or simple window treatments. Granite, being natural stone, is far more UV-stable.
Use a cutting board — but for your knives, not the counter. You’ll read everywhere that you must use a cutting board to protect your countertops. The truth is more nuanced: both granite and quartz are harder than your knife blades, so cutting directly on them won’t scratch the stone — it’ll destroy your knives’ edges and can dull the polished finish over time. So yes, use a cutting board, but understand the real reason: you’re protecting your knives and the surface sheen, not preventing deep gouges.
What Voids Your Warranty (and Surprises Homeowners)
Countertop warranties cover manufacturing defects but exclude damage from misuse, and the exclusions catch people off guard. For quartz, the big ones are heat damage (that scorch mark from a hot pan is on you, not the manufacturer) and damage from prohibited chemicals like oven cleaner. For granite, it’s typically staining from a failure to maintain the sealer. Keep your care documentation, use manufacturer-approved cleaners, and when something goes wrong, call your fabricator before experimenting with DIY fixes that might make a repairable problem permanent.
A Quick Reference
For granite: test the seal with water and reseal only when it stops beading; avoid acids and harsh cleaners; treat oil stains with a poultice; don’t worry much about heat. For quartz: trivets under everything hot including appliances; keep oven cleaner and harsh chemicals away; never reseal; mind the direct sunlight. For both: daily soap and water, no abrasives, wipe spills promptly, and use a cutting board to save your knives.
Mind the Seams and Edges
One spot both granite and quartz quietly fail is at the seams and edges, and it almost never gets mentioned. Seams — the joints where two slabs meet, usually near a sink or cooktop — are sealed with color-matched epoxy or caulk that can break down over years of moisture and heat exposure. If you notice a seam darkening, lifting, or collecting water, have it re-sealed before moisture works its way underneath and undermines the bond. Around an undermount sink especially, water pooling at the front edge is the most common long-term failure point. Wipe standing water from sink edges and don’t let damp dish towels sit draped over the lip for hours. Edges and corners also take the brunt of impact — a dropped cast-iron pan can chip even the toughest stone — so handle heavy cookware with care near the perimeter.
We’re Here When You Need Us
Well-cared-for countertops are the centerpiece of a kitchen that lasts. If your counters are stained, scorched, or simply dated, or you’re planning a new kitchen and weighing granite against quartz for how you actually cook and live, our team can help you choose the right surface and install it beautifully. Take a look at our custom countertop options, browse our kitchen portfolio for inspiration, and contact us today for a consultation.