Quartz countertops have become increasingly popular in recent years due to their durability, aesthetics, and heat resistance. As a manufactured stone, quartz is an engineered material made from crushed quartz, resin, and pigments that is molded into countertops. Understanding the heat resistance properties of quartz can help homeowners determine if it is the right choice for their kitchen.
What Gives Quartz Heat Resistance?
The key factor that provides quartz with its heat resistance is the resin that binds the crushed quartz together. The resin makes quartz less porous than natural stone, so it can better withstand heat without damage. Here are some specifics on how the resin impacts heat resistance:
- The resin is an epoxy-like material that can withstand temperatures up to 212°F before softening or discoloring. This gives quartz more heat tolerance than natural stone.
- When quartz is manufactured, the percentage of crushed quartz vs resin varies between brands. More resin content typically means better heat resistance.
- The resin forms a smooth, non-porous surface. This prevents heat from penetrating and cracking the material like it would with porous natural stone.
How Durable is Quartz Against Heat Damage?
For everyday cooking needs, quartz has excellent heat resistance:
- Pots and pans straight from the stovetop can be placed on quartz without worry. As long as temperatures stay under 212°F, no damage will occur.
- Quartz can withstand heat from appliances like crockpots, instant pots, and electric griddles placed directly on the surface.
- Brief contact with hot pans taken directly from the oven is okay. But prolonged direct heat exposure above 212°F can cause discoloration or cracks.
- Accidental spills of boiling water or hot oils will not harm quartz. The non-porous surface prevents liquid penetration.
- Exposure to open flames should be avoided. But brief contact with flames from lighting a pan will not damage quartz.
Does Quartz Beat Granite for Heat Tolerance?
Quartz generally surpasses granite in heat resistance for a few reasons:
- Granite is more porous, so heat penetrates deeper and can crack the stone.
- Resin gives quartz better heat protection across its entire thickness.
- Granite can withstand heat up to a maximum of about 400°F before possible damage. Quartz has a lower threshold around 212°F but is less prone to cracking.
- Darker colors of granite absorb heat more readily, making it prone to thermal shock from temperature changes.
What About Other Heat Sources Like Curling Irons?
Quartz can withstand brief contact with everyday heated appliances:
- Curling irons, straighteners, and blow dryers will not harm quartz. The key is to not leave them sitting in one spot when hot.
- Hot rollers, clothing irons, and similar items placed on quartz will be fine for a short period. Prolonged direct heat exposure can cause discoloration.
- Lighting candles directly on quartz should be avoided. Place them in candle holders or on a hot pad. The resin can discolor under prolonged flame exposure.
In general, quartz offers more heat protection than natural stone surfaces. With some basic precautions against extreme heat, quartz provides an extremely durable and heat-resistant countertop for any kitchen.
FAQ about Heat Resistance of Quartz Countertops
How hot can quartz countertops get before they are damaged?
Quartz can withstand temperatures up to around 212°F before possible discoloration or damage. Brief contact with hot pans up to 572°F is okay, but prolonged heat exposure above 212°F can harm quartz.
Can you put a hot pan directly on quartz?
Yes, a hot pan straight from the stovetop can be placed briefly on quartz without damage. Prolonged direct contact with extreme heat above 212°F could cause discoloration or cracks over time.
Is quartz more heat resistant than granite?
Quartz generally has better heat resistance than natural granite. The resin binding makes quartz less prone to cracking under heat and gives more uniform protection across the surface.
Can you put a curling iron on quartz?
Brief contact from a hot curling iron will not harm a quartz countertop. Avoid leaving heated tools in one spot for prolonged periods, which can lead to discoloration over time.
Is it okay to pour boiling water on a quartz countertop?
Yes, briefly pouring boiling water will not damage quartz. The non-porous surface prevents water penetration that could crack natural stone. Just wipe dry any spilled water quickly.
Can you put a crockpot or instant pot on a quartz countertop?
Using crockpots, instant pots, or other electrical cooking appliances directly on quartz is completely safe, as long as temperatures stay below 212°F. Quartz can easily withstand the heat.
Conclusion
With proper care, quartz provides an extremely durable and heat-resistant surface that can handle the demands of any home kitchen. Its resilience against hot cookware, boiling spills, heated appliances, and other heat exposure surpasses that of natural stone. With a few small precautions against extreme or prolonged heat, quartz countertops will maintain their beautiful appearance for years to come.