Ovens having spray systems for spraying cleaning fluid in a cooking chamber are disclosed that include a chamber drain flow path that leads to a grease drain path and a water drain path. A baffle wall in the chamber drain flow path controls the flow of fluid between the grease drain path and the water drain path. The chamber drain flow path may also have a recirculation path to return water to the spray system. Ovens having spray systems for cleaning are disclosed that include a door having a latch mechanism that automatically latches upon closure of the door and a gasket disposed between the door and an oven housing that directs water impinging upon the door back into the cooking chamber and the chamber drain flow path. The door may have an inner glass pane and an outer glass pane pivotably mounted to the inner glass pane.