Kitchen oven. Max temp usually less than 450F, isn't it?
here we are. Google brought up Cerakote Temperatures:
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The recommended temperatures for curing Cerakote depend on the type of Cerakote and the material being coated:

Elite Series: Cure at 300° Fahrenheit for 1 hour, then flash cure at 150°–180° Fahrenheit for 10–25 minutes
H-Series: Cure at 250° Fahrenheit for 2 hours, then flash cure at 150°–180° Fahrenheit for 10–25 minutes
Plastics or polymer: Cure at 150°–180° Fahrenheit for 2 hours