Here's a breakdown of why you should use a trivet or hot pad:
Thermal Shock: When a very hot object, like a pan straight from the stove or oven, is placed on a cool granite countertop, it can cause a phenomenon called thermal shock. This rapid temperature change can cause stress in the stone's surface, leading to cracks or fractures. While a hairline crack might not be immediately visible, it can weaken the stone over time and eventually become more prominent.
Sealer Damage: Most granite countertops are sealed to protect them from stains and moisture. The high heat from a hot pan can melt or damage this sealant, leaving the stone vulnerable to staining. A damaged sealant will make the granite look dull and discolored in that spot.
Resin Damage: Some granite slabs are treated with resins to fill in natural pits and fissures and create a smoother surface. Extreme heat can scorch or discolor these resins, leaving a permanent white mark or "burn" on the countertop.
Best Practices
To protect your granite countertops, it's always best to use a trivet, hot pad, or a wooden cutting board as a buffer between a hot pan and the stone. This simple step can save you from costly repairs and keep your countertops looking new for years to come.
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