Quartz countertops are an increasingly popular choice for kitchen and bathroom remodeling projects due to their durability, low maintenance, and stylish appearance. One of the key benefits of quartz counters is their superior resistance to heat compared to other countertop materials. But exactly how heat resistant are quartz countertops? Let’s take a closer look.
What Is Quartz?
Quartz countertops, sometimes referred to as engineered stone, are made from ground natural quartz crystals combined with resins and pigments. The quartz content typically ranges from 90-94%, while the rest consists of polymers and coloring agents.
The result is a non-porous, highly durable surface that is resistant to scratches, stains, and heat. The resins bind the quartz particles together to form a seamless surface that can be fabricated into countertops, backsplashes, vanities, and other surfaces.
Heat Resistance of Quartz Countertops
One of the key benefits of quartz over natural stone and other countertop materials is its excellent resistance to heat. Here are some specifics on the heat tolerance of quartz:
- Can withstand heat up to 212°F (100°C) – This refers to intermittent, brief contact with hot pots or objects fresh from the oven or stove. Quartz can easily handle these momentary exposures without damage.
- Not affected by sustained temperatures up to 150°F (65°C) – Quartz can withstand prolonged exposure to moderately hot temperatures without any issues. For example, a hot crock pot or warming tray can safely sit on a quartz counter for extended periods.
- Minor discoloration possible over 158°F (70°C) – When exposed to very hot temperatures exceeding 158°F for a prolonged period of time, some discoloration or marks may occur. However these are usually minor and can often be removed.
- Thermal shock resistant – Sudden and extreme temperature changes normally do not affect quartz thanks to its non-porous composition. Pouring boiling water on a quartz counter will not crack or damage it.
- Do not expose to extreme heat – While quartz has excellent heat tolerance compared to other counters, it should not be subjected to very high temperatures above 300°F that can damage the resin binders.
Tips for Using Quartz Countertops Around Heat
To get the most out of quartz and avoid potential damage from excessive heat exposure, follow these guidelines:
- Use heat trivets or hot pads when placing hot pans, dishes, or appliances directly on the counter.
- Avoid prolonged exposure to heat sources over 150°F, such as oven doors, hot plates, griddles, etc.
- Allow cookware to cool before placing directly on the quartz surface.
- Clean up spills from high-temperature liquids like boiling water or hot oils promptly.
- Do not place quartz near open flames or direct high-heat equipment like broilers.
- Check the bottom of curling irons and hair straighteners before setting them on the counter.
With proper care around heat sources, quartz countertops will retain their flawless appearance and thermal resilience for many years. The key is avoiding extreme concentrated heat over 300°F. Overall, quartz offers superior heat tolerance compared to solid surface, laminate, tile, wood, and even some natural stone counters. Its thermal performance makes it an ideal choice for active kitchens and bathrooms.
How Does Quartz Compare to Other Countertop Materials?
It’s useful to compare the heat resistance of quartz versus other popular countertop options:
- More heat resistant than solid surface – Materials like Corian have a lower heat tolerance around 175°F. Hot pans can damage solid surface.
- More heat resistant than laminate – Laminate countertops have a low threshold of about 120°F before damage occurs. Not ideal for hot cookware.
- Similar heat resistance to natural stone – Granite, marble and other natural stones have good durability around heat. But quartz is less prone to cracking and discoloration.
- More heat resistant than wood or butcher block – Wood surfaces can scorch and burn easily. Not suitable for hot cookware.
- More heat resistant than tile – While ceramic tile can withstand heat, the grout lines can crack and deteriorate over time. Quartz is more seamless.
So while other options like granite and marble also have excellent thermal properties, quartz is arguably the most heat-resistant countertop material commonly used in kitchens today.
Signs of Heat Damage on Quartz
Although quartz is highly resilient against heat, exposure to extreme temperatures can result in some damage. Here are some signs that may indicate heat damage on a quartz counter:
- Discoloration – Scorched or burnt areas, usually light or white in color
- Brown or yellow staining – Caused by oils burnt into the surface
- Small cracks or pits – From prolonged contact with very hot pots
- Melted spots – Signs of extreme localized heat
- Loss of glossy sheen – Damage to the protective top layer and resin
Minor heat damage may be reversible with professional resurfacing. But excessive exposure can permanently damage the look and integrity of quartz counters. Avoiding direct high-heat contact is the best way to ensure your quartz countertops remain in flawless condition.
Conclusion
With proper care and avoidance of sustained heat above 150°F, quartz countertops can retain their pristine appearance and thermal resistance for decades. Their durability and resilience to cracking under high or sudden temperatures make them an ideal choice for kitchens and baths. When used wisely around heat sources, quartz counters will stand up beautifully over years of use. Their superior heat resistance compared to other countertop materials is a key benefit that makes quartz a top choice for active kitchens.
Frequently Asked Questions
Can you put a hot pan on quartz?
Yes, quartz can withstand momentary contact with hot pans fresh from the stove or oven. But it’s best to use hot pads or trivets to prevent any potential damage over time.
Does quartz burn or scorch easily?
No, quartz is highly resistant to burning or scorching thanks to its durable non-porous composition. Feel free to remove items from a hot oven directly onto a quartz counter.
Can you place a crockpot on a quartz countertop?
Yes, a quartz counter can safely withstand the sustained low heat from a crockpot or warming tray without issue. Just be sure to use a trivet for very hot crockpots above 150°F.
Is quartz ruined if burned or scorched?
Not necessarily. Minor heat damage may be repaired through professional resurfacing. But repeated or excessive overheating can permanently damage quartz. Best to always use heat protection when possible.
Can quartz counters crack from heat?
Quartz is not prone to thermal shock cracking like natural stone. However, small cracks are possible if subjected to direct high heat from pots over 300°F. Avoid exposing quartz to extreme sustained heat to prevent damage.