Patent ID: 7967002

Claim:
A cooking device for supplying a steam into a heating chamber accommodating an object to be heated, thereby heating the object to be heated, comprising: steam supplying means for supplying the steam to the heating chamber; air discharging means for discharging the steam supplied to the heating chamber from the heating chamber; and a dividing plate for vertically dividing a space in the heating chamber into upper and lower spaces, wherein said discharging means includes: a ventilating means which sucks an outside air and generates an air flow, a supply ventilating path which serves to lead the air flow from the ventilating means to the heating chamber, a discharge ventilating path which serves to discharge air in the heating chamber, and a control portion which controls an amount of the outside air to be supplied to the heating chamber; wherein a communication portion is formed between the heating chamber and the dividing plate to communicate the upper and lower spaces, and said steam supplying means supplies the steam to the lower space of the heating chamber; an air supply port at where the supply ventilating path is connected to the heating chamber is formed in the lower space of the heating chamber; and an air discharge port at where the discharge ventilating path is connected to the heating chamber is formed in the lower space of the heating chamber and communicates with an outside environment.