The material is designed to withstand the high temperatures produced during normal cooking, but that doesn’t mean it is indestructible.
The biggest issue is rapid temperature change.
When one part of the cooktop becomes extremely hot while another area remains much cooler, the material can experience uneven expansion and contraction.
Most of the time, the cooktop handles normal heating and cooling just fine.
But add an unexpected shock—especially a heavy or very hot object—and you can create a problem.
And sometimes the damage isn’t immediately dramatic. A tiny crack can develop first and become worse over time.
The Mistake That Can Damage Your Glass Cooktop
One of the easiest mistakes to make is placing a hot object onto a cool section of the cooktop.
This can include:
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- A hot pan
- A hot saucepan lid
- A Dutch oven
- A baking dish
- A kettle
- A cast-iron skillet
- A hot roasting pan
- A griddle
- A heat-retaining trivet or cookware accessory
The problem isn’t simply that the object is hot.
