Quartz countertops are an increasingly popular choice for kitchen and bathroom remodeling projects thanks to their durability, low maintenance, and stylish appearance. However, like all countertop materials, quartz has limitations in terms of heat tolerance that homeowners should understand. Here is a detailed look at how much heat quartz countertops can handle.
What is Quartz?
Quartz countertops, sometimes called engineered stone, are made from ground natural quartz crystals combined with resins and pigments. The result is a very hard, non-porous surface that resists scratches, stains, and heat better than many natural stone countertops.
While pure natural quartz can withstand very high temperatures, the resins used in engineered quartz reduce its overall heat tolerance slightly. However, quartz still ranks among the most heat-resistant options for countertops.
Heat Tolerance of Quartz Countertops
Most quartz countertop manufacturers rate their products for intermittent heat exposure up to 212°F (100°C). This means quartz can generally handle:
- Hot pots and pans off the stove or out of the oven
- Flat bottom coffee and tea mugs
- Warm plates out of a low-heat dishwasher
- Low-heat food warmers
However, for best results, homeowners should avoid exposing quartz countertops to sustained high heat above the recommended threshold. Quartz can potentially suffer discoloration, cracks, or burns if:
- Hot pots or pans are left in one spot for a prolonged time
- High-heat appliances like electric griddles or crock pots are used directly on the surface
- Heat sources above 212°F make direct contact
Best Practices for Using Heat on Quartz
To prevent any heat-related damage, follow these tips when using quartz countertops:
- Always use trivets or hot pads under hot pots, pans, appliances, etc.
- Don’t place items that may retain heat like curling irons or clothing irons directly on the quartz.
- Avoid prolonged exposure from heat lamps or warmers – use a hot pad underneath.
- If using a crock pot or electric griddle, place a protective pad underneath.
- Allow space between the quartz and underneath wall ovens or cooktops.
- Check appliance manuals for heat warnings and follow any special instructions.
- Clean up spills immediately to avoid hot liquids seeping into countertop seams.
- Consider using silicone trivets as they conform to the shape of pots/pans and don’t shift easily.
Is Thermal Shock a Risk?
Thermal shock occurs when a hot item comes into contact with a much colder surface, creating stress that can damage the material. Quartz’s resins make it more vulnerable to thermal shock damage than pure natural stone.
To reduce the risks:
- Avoid putting frozen foods or icy drinks directly on quartz counters.
- Don’t place very hot items on quartz that has become cold, like counters near drafty windows on cold days. Let the surface warm up first.
- Allow hot pans to cool for a few minutes before placing on quartz rather than transferring directly from the burner.
With some care and common sense, homeowners can enjoy the benefits of quartz countertops for years without worrying about heat damage. Following the manufacturer’s recommendations and using hot pads for protection will keep quartz counters looking pristine.
Frequently Asked Questions About Heat and Quartz Countertops
How hot can quartz counters get before they burn?
Most manufacturers recommend keeping sustained heat exposure under 212°F (100°C). Short-term contact with hot items just off the stove may be tolerated, but prolonged direct heat above that threshold can damage quartz.
Can you put a hot pan on quartz?
It’s best to use a trivet or hot pad when putting hot pans on quartz. Allowing pans to cool for a few minutes first will further reduce risk of damage. Avoid leaving hot pans in one spot for extended time.
What happens if quartz gets too hot?
Excessive heat exposure can discolor, crack, or scorch quartz counters. The resins present make it more prone to damage than pure natural stone. Follow manufacturer guidelines to prevent permanent damage.
Is a quartz countertop heat resistant?
Quartz has good heat resistance compared to many countertop materials, but it does have limits. Sustained heat above 212°F can cause gradual damage over time. Treat quartz with as much care as other engineered surfaces when using heat.
Can you put a griddle on a quartz countertop?
Electric griddles and similar small appliances should not make direct contact with quartz counters. Always place a hot pad or trivet underneath to dissipate heat and avoid any risks of damage.
Conclusion
Quartz offers an attractive, low-maintenance countertop option that withstands moderate heat exposure quite well. However, the resin content makes it important to follow manufacturer guidance to prevent discoloration, cracks, or burns from excessive sustained heat above 212°F. Using basic precautions like hot pads provides reliable protection for beautiful quartz countertops.