1. What the haze is
The cloudy white haze trapped between your oven door glass panels is primarily a buildup of mineral deposits. These deposits consist mainly of calcium and magnesium left behind when water evaporates during cooking or cleaning. Over time, these minerals adhere to the glass surface, forming a tough, opaque film.
This mineral film is similar to the hard water stains that accumulate on shower doors or windows. While it doesn’t pose a risk to your oven’s function, it obscures clear visibility into the oven cavity, making it difficult to monitor your food without opening the door.
2. How mineral film forms
This mineral film develops because of the interaction between moisture, heat, and dissolved minerals present in water. When you cook, especially at high temperatures, water vapor is generated and can enter the narrow space between the oven door’s double glass panes.
As this moisture evaporates within the sealed cavity, minerals dissolved in the water remain behind. Repeated cycles of heating and cooling cause these mineral residues to bake onto the glass surface, creating a firmly bonded film. Homes in areas with hard water, which contains higher mineral content, are more prone to this issue.
