Are Quartz Countertops Heat-Resistant? How to Protect This Material From Damage
Some like it hot—but for some counters, it’s a hard pass
Quartz is heat-resistant up to about 150ºF.
Quartz consists primarily of natural crystals that stand up to high temperatures, but extreme heat can damage the resin in quartz counters, causing them to crack.
Protect quartz countertops with trivets and hot pads.
Countertop materials that can withstand higher heat include granite, quartzite, and soapstone.
Many homeowners updating their kitchens wonder if quartz countertops are heat-resistant. Before you set down that searing hot cookie sheet, let's look at how quartz surfaces hold up under high temperatures.
Are Quartz Countertops Heat-Resistant?
Quartz countertops are engineered using around 90% natural quartz crystals combined with resins and polymers. Quartz is highly durable and can tolerate some exposure to heat, but the resin binders are more vulnerable. These materials can degrade from high heat, impacting the overall performance of the surface.
How Much Heat Can Quartz Handle?
Generally speaking, quartz countertops can withstand temperatures up to about 150°F to 200°F without immediate damage. Anything hotter, like a pizza stone straight out of a 400°F oven, can cause burn marks or discoloration. Remember, while quartz is heat-resistant, it is not heatproof. Other countertop materials like granite and quartzite are more heat-resistant.
Can High Heat Cause Quartz to Crack?
Yes, high heat can crack quartz, particularly sudden and extreme temperature changes. For example, taking a scorching cast-iron pan off the stovetop and then placing it directly onto the counter creates the perfect conditions for thermal shock, causing hairline fractures and even deeper cracks.
How to Protect Quartz Counters
Fortunately, a few simple steps can help protect your countertop investment.
Use a Heat Barrier
It is essential to create a buffer between hot cookware and your quartz countertop, whether it's a trivet, hot pad, silicone mat, or even a thick towel in a pinch. Think of these items as insulation for your counter that keeps the resin stable.
Avoid Prolonged Heat From Appliances
We all have a few heat-generating appliances in our kitchens, but items like air fryers, toaster ovens, and crockpots can generate enough heat to damage your quartz counter over time. An easy fix is adding a protective heat mat under these appliances.
Educate Everyone in the House
Protecting your quartz counters isn't just your job. Ensure everyone in the family and guests know not to place broiling hot items on the countertop.
Heat damage from hot pots and utensils can leave unsightly marks and spots on your kitchen counter. Tile, granite, and stainless steel are more heat-resistant than wood or laminate. Prevent heat damage by letting pots cool on the stove and using trivets.
Can Sunlight Damage Quartz Countertops?
Most homeowners appreciate natural light and the good vibes it adds to kitchens. But here's the thing: Prolonged exposure to direct sunlight can harm your quartz countertops. While a bit of sun isn't a big deal, daily UV exposure can gradually cause fading and discoloration.
How to Prevent Sun Damage
Window coverings are the best bet for protecting white quartz countertops, and you have plenty of options. You can install curtains, blinds, or UV-filtering film to help block or diffuse direct sunlight. Consider this a small prevention that will keep your quartz counters looking great for decades.
How Much Do Quartz Countertops Cost to Install?
Countertops come in all shapes, styles, and price points, but quartz tends to be on the higher end of the spectrum. While the average U.S. homeowner's cost to install a countertop is around $3,140, quartz installations typically clock in at around $4,500. That said, the price tag can swing wildly from $1,000 for a smaller, modest project to $12,000 for high-end quartz in a spacious kitchen.
Frequently Asked Questions
Yes, in some instances, homeowners can have their heat-damaged quartz countertops repaired. However, it greatly depends on the severity. A pro can buff out minor discolorations. Epoxy kits are also available to fix minor cracks. Sadly, deep burns causing extreme resin damage may require a complete replacement.
Fortunately, there are many types of heatproof countertops. Granite, quartzite, concrete, and stainless steel are all fiery contenders. These surfaces work best in busy kitchens where hot pots, pans, and baking sheets are part of the daily routine. Plus, their durability means you get a long-lasting work surface that won’t flinch at a bit of heat or heavy use. However, many stone and concrete counters require a sealer, which is typically not heatproof.
While quartz countertops are durable indoors, they are not made for outdoor use. Exposure to sunlight, weather, and even heat from barbeque grills can cause the resins to break down, impacting the surface.
Your morning mug of coffee won’t instantly damage your quartz countertop, but it’s still wise to play it safe. While quartz can handle brief heat, repeated exposure can wear down its finish over time. Using a coaster adds a simple layer of protection and helps keep your surface looking fresh.
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