Why Oven Doors Shatter: The Hidden Science Behind Sudden Glass Breakage, Common Household Habits That Increase Risk, and Practical Steps Homeowners Can Take to Prevent Unexpected Oven Door Explosions and Keep Kitchens Safe for Everyday Use

Manufacturing imperfections can also contribute. Microscopic nickel sulfide inclusions, trapped during production, may expand slowly with repeated heating. Although invisible, these inclusions can generate localized stress that causes the glass to shatter unexpectedly, sometimes long after the oven is installed.

Daily use further adds to the risk. Slamming the door, leaning on it, placing heavy items on it, or scratching the surface with abrasive cleaners can all create tiny flaws. Sudden cooling, such as spraying cold water on hot glass, can trigger thermal shock and worsen existing damage.

Although oven door shattering is rare, it is usually the result of accumulated stress rather than pure chance. By handling the door gently, cleaning it carefully, avoiding sudden temperature changes, and watching for warning signs like cracks or chips, homeowners can significantly reduce the risk and keep their kitchens safe.

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