The shattering of oven doors can be attributed to two primary factors: the choice of glass and inherent imperfections within it. Many ovens utilize either tempered soda lime glass, which has lower tolerance to thermal changes, or robust borosilicate glass.

Nevertheless, even with these materials, the presence of tiny defects like nickel sulfide inclusions may lead to spontaneous glass breakage, particularly during high-heat cycles such as self-cleaning. To minimize the likelihood of such incidents, it is crucial to handle oven doors with care, refrain from using abrasive cleaning tools or placing heavy items on the door, and ensure that dishes inside the oven do not come into contact with the glass.

Implementing simple precautions such as using gentle cleaning tools and avoiding abrupt temperature changes can significantly diminish the risk of shattering, thereby maintaining a safe kitchen environment and preserving the proper functioning of your oven.