How to Keep Quartz Countertops Looking New: Cleaning, Care, and What to Avoid

Quartz Is Low-Maintenance — With Some Real Exceptions

One of quartz's most appealing qualities is that it doesn't require sealing. Unlike granite, quartzite, or marble, engineered quartz is non-porous by design — liquids can't penetrate the surface, so you'll never need to apply a stone sealer. For busy households, that's a genuine advantage. Most everyday messes wipe right off.

But "low-maintenance" isn't the same as "indestructible," and quartz has a few specific vulnerabilities that are worth understanding before they become problems. Heat is the big one. Some stains — particularly from strong pigments or certain oils — can be more stubborn than people expect. And a handful of common cleaning products will damage the surface. None of this is complicated, but it's worth knowing.

Daily Cleaning: What Works

For everyday cleaning, warm water and a small amount of mild dish soap applied with a soft cloth or non-abrasive sponge is all you need. Wipe, rinse thoroughly to remove soap residue, and dry. This handles food spills, grease, and general grime without any risk to the surface. Many quartz manufacturers also have their own recommended care products — it's worth checking your specific brand's care guide, since recommendations can vary.

For dried-on food or sticky residue that doesn't wipe off easily, use a plastic scraper or putty knife held at a low angle to loosen the material before cleaning. Don't use metal blades or anything that could scratch the surface. Once the bulk is removed, warm soapy water or a gentle quartz-safe cleaner finishes the job.

What to Avoid on Quartz Surfaces

This is where quartz care gets specific. A number of cleaners that seem reasonable — or are marketed as general kitchen cleaners — can cause real damage to quartz surfaces:

• Bleach and bleach-containing cleaners: Can discolor the surface and degrade the resin over time. Avoid these even in diluted form for routine cleaning.
• Oven cleaners, drain cleaners, paint strippers: Highly caustic. These can cause immediate, irreversible damage to the resin.
• Abrasive scouring pads, steel wool, or powdered cleansers: Will scratch and dull the polished surface. Once the polish is scuffed, it's difficult to restore.
• Vinegar, lemon juice, and citrus-based cleaners: Acidic cleaners can degrade the resin binders with repeated use, dulling the surface over time.
• Highly concentrated rubbing alcohol or solvent-based cleaners: A small amount of rubbing alcohol for a specific stubborn stain is generally fine, but frequent or heavy use of solvents can stress the resin.

When in doubt about a cleaning product, check the label for quartz compatibility. A product marketed for general kitchen use isn't automatically safe for quartz. If it's not explicitly listed as quartz-safe, mild dish soap and water is the safer default.

Stubborn Stains: What Quartz Can and Can't Resist

Because quartz is non-porous, most spills clean up easily — a coffee splash, pasta sauce, or a wine drip wiped promptly won't leave a stain. That's the routine reality, and it's one of quartz's genuine strengths.

Where it gets more complicated: certain strongly pigmented substances can be harder to remove when they've had time to sit on the surface, even without absorbing into the stone. Turmeric, red wine left overnight, permanent marker, and some food dyes can all leave residue that takes more effort. Sunscreen and certain skin oils can also leave stubborn marks — this comes up more in bathroom settings where the surface contacts hands or arms repeatedly.

For these tougher situations, try a small amount of rubbing alcohol on a soft cloth and rub gently. A dedicated quartz cleaner (there are several on the market formulated for this) can also help. For dried, stuck-on residue, the plastic scraper approach followed by gentle cleaner is still the safest route. What you want to avoid is the instinct to scrub harder — that tends to damage the surface more than the original stain did.

Compared to granite care, quartz doesn't benefit from the poultice method, since there are no open pores for the drawing compound to work with. With quartz, you're working on the surface rather than drawing anything out of the stone.

Heat: The Biggest Risk for Quartz Countertops

This deserves more emphasis than it usually gets. Quartz countertops can be damaged by heat in a way that granite typically isn't. The resin binders that hold the engineered stone together are heat-sensitive — sustained direct heat from a hot pan, slow cooker, or electric griddle can cause discoloration, warping, or cracking at the surface.

The damage tends to happen at the point where the pan contacts the quartz and heat concentrates. It may show up as a whitish discoloration, a faint ring, or in worse cases, visible cracking. Results from attempting to repair this kind of damage can vary — some repairs are more successful than others depending on the specific damage and the quartz brand, but in general this is not a situation you want to test.

The fix is straightforward: always use trivets or hot pads under anything that's been on the stove or in the oven. This is one area where granite has a meaningful advantage — granite's natural composition makes it considerably more tolerant of heat. If your household does a lot of high-heat cooking and pans tend to land directly on the counter, it's worth factoring that into your material choice before you buy.

Scratch Resistance: Better Than Most, Not Impervious

Quartz scores high on the Mohs hardness scale — around a 7 — which means most everyday kitchen knives won't scratch it under normal use. It's harder than laminate, tile grout, and many other countertop materials. In day-to-day kitchen life, this is rarely an issue.

That said, quartz is not scratch-proof. Ceramic-tipped tools, certain abrasive materials, and sustained hard contact can leave marks. Using a cutting board is still a good practice — less for the countertop's sake and more for your knives, which dull quickly when used directly on stone. It's also worth noting that heavy impact from dropped cast iron or similar objects can chip the edge or surface, just as it can with any stone countertop.

UV Exposure and Outdoor Installations

Quartz is generally not recommended for outdoor countertop applications, and windows with significant direct sun exposure are worth thinking about for interior installations. The resin in engineered quartz can yellow or discolor with prolonged UV exposure. This varies by manufacturer and specific product — some brands engineer better UV resistance than others — but it's a real consideration if you're installing quartz in a bright sunroom, near a large south-facing window, or in any outdoor kitchen or bar setting. For those applications, granite, quartzite, or soapstone tend to be more suitable choices.

No Sealing Required — This Is a Genuine Advantage

It's worth restating clearly: quartz does not need to be sealed. Never. The non-porous surface doesn't benefit from a sealer and doesn't need one to function properly. If someone recommends sealing your quartz countertops, that's not advice worth following — it won't help and may leave a residue on the surface that's difficult to remove.

This is one of the clearest maintenance differences between quartz and natural stone. If you've been used to resealing granite or quartzite periodically, quartz removes that task entirely. You can run the water-bead test on granite to check its seal — there's no equivalent test or task with quartz.

What to Do If Something Goes Wrong

If you notice discoloration, a chip, or a stubborn mark that doesn't respond to cleaning, the next step is an honest assessment of what happened and whether it's repairable. Some quartz damage — particularly from heat — is difficult to address. Other issues, like small chips on edges, can sometimes be repaired with color-matched filler with reasonable results. The outcome depends on the type and extent of the damage and the specific quartz product.

If you're dealing with a problem on your quartz countertops and aren't sure whether it's fixable, give us a call at 603-736-0004. We'll give you a straight answer about what we're seeing and what your options are. For broader questions about whether quartz is the right material for a new kitchen or bathroom project, visit our quartz countertops page or stop by the showroom at 1022 Dover Road, Epsom, NH.

Related Reading

If you're weighing quartz against natural stone, our granite vs. quartz comparison covers the differences honestly across categories including heat tolerance, maintenance, and cost. For kitchen countertop material selection broadly, or if you're looking at bathroom countertops where different priorities apply, those pages are a good starting point.

Get a Free Estimate

Considering quartz for a kitchen, bathroom, or another space? Reach out for a free estimate or call 603-736-0004. We're happy to walk you through options, show you samples, and give you an honest picture of what maintenance looks like in practice.