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Self-cleaning pyrolytic ovens reduce food soiling to ash with exposure to temperature around 932 °F (500 °C). The oven walls are coated with heat- and acid-resistant porcelain enamel. A self-cleaning oven is designed to stay locked until the high temperature process is completed.
As long as your oven is in good working order, Willis said using the self-cleaning oven feature is safe and effective. Lest you think it’s a magic button to fast-track the cleaning process ...
Oven cleaner is powerful enough, so don’t mix it with anything — not even the self-clean feature on your oven. Bleach and oven cleaner is another no-no, as it can produce chlorine gas.
A guide to using the self-clean oven function when cleaning your oven, including what to know beforehand and common mistakes to avoid.
Traditional oven cleaners contain sodium hydroxide (lye), solvents, and other ingredients, [3] They work best when used in a slightly warm (not hot) oven. If used in a self-cleaning oven, the lye can cause permanent damage to the oven. Some oven cleaners are based on ingredients other than lye. These products must be used in a cold oven.
Manufacturers next offered self-cleaning ovens, which allows the oven to run at a special high temperature setting, effectively burning food residue to ash. Early self-cleaning ovens were not thoroughly satisfactory. At worst, they left carbon stuck to the oven surfaces. At best, they left carbon residue on the oven floor. [citation needed]
La Cornue says its ovens are "built to last forever, and the intense concentrated heat used in a self-clean mode will break down the oven seal over time and compromise the efficiency of the oven."
The seasoned surface will deteriorate at the temperature where the coating breaks down. This is typically higher than the smoke point of the original oils and fats used to season the cookware. Thus old seasoning can be removed at a sufficiently high temperature (~500 °C), as found in oven self-cleaning cycles.