Steam Control System For Multizone Oven

A multi-cavity oven comprising:

• a housing defining an interior cooking volume subdivided by horizontally extending humidity barriers into multiple cooking cavities, each cooking cavity supporting different cooking temperatures, the cooking volume surrounded by insulated outer walls and at least one door that may open and close to provide access to the interior cooking volume;
• a steam generator system introducing steam into selective cooking cavities according to an electric signal;
• and
• a set of electrically actuatable valves communicating between respective outlets in respective cooking cavities and outside air;
• and
• further including a controller communicating with the steam generator system and the electrically actuatable valves to operates the electrically actuatable valves to vent cooking cavities that are not receiving steam from associated steam generators when those cooking cavities are adjacent to cooking cavities receiving steam from associated steam generators.