With the Siemens HB578ABS0 you no longer have to preheat your oven when preparing frozen meals. Thanks to the coolStart function, you can prepare frozen meals without first having to wait until the oven has the right temperature. Do you prefer to eat a homemade pizza instead of a frozen one? The oven also has a pizza setting for a crispy crust and crispy bottom. After all that baking you don't have to worry about cleaning the oven: with the pyrolysis function, the oven burns all the grease and grime, allowing you to easily wipe the ashes out of the oven.