Cooking oven with steam generator

A cooking oven (1) for foodstuffs, comprising:

• a cooking chamber (2), wherein foodstuffs can be placed for being cooked, having a bottom wall (3) provided with a first cooking chamber outlet (4) positioned in such a way to receive grease that drips from the foodstuffs and collects on said bottom wall (3);
• a grease conduit (6) configured for draining grease from said cooking chamber (2), wherein said first cooking chamber outlet (4) is fluidly connected to said grease conduit (6);
• a heating device (8) configured for heating the internal of said cooking chamber (2);
• and
• a vapour outlet duct (9) configured for discharging vapour from said cooking chamber (2);
• wherein said bottom wall (3) of said cooking chamber (2) is provided with a second cooking chamber outlet (10), distinct from said first cooking chamber outlet (4) and fluidly connected to said vapour outlet duct (9);
• wherein an inlet border (10a) of said second cooking chamber outlet (10) is placed at a raised position with respect to the inlet border (4a) of said first cooking chamber outlet (4), such that, in use, grease collected in said bottom wall (3) first enters said first cooking chamber outlet (4) rather than said second cooking chamber outlet (10);
• and
• wherein a shield element (300) is positioned to prevent grease from entering said second cooking chamber outlet (10).