Patent ID: 8178142

Claim:
Method for conducting a treatment program in a preparation chamber of a food preparation appliance, in which at least the preparation chamber atmosphere of the food preparation appliance is detected by at least one sensor unit, and the treatment program is conducted as a function of values detected with the at least one sensor unit and of values stored in a memory unit, the method comprising: determining at least one first value of the preparation chamber atmosphere and/or the atmosphere surrounding the food preparation appliance with the at least one sensor unit before selecting and/or beginning a treatment program; storing the first value; determining at least one second value of the preparation chamber atmosphere and/or of the atmosphere surrounding the food preparation appliance with the at least one sensor unit after loading a cooking product into the preparation chamber or after introducing a lime removal and/or cleaning agent into the preparation chamber and/or after beginning the treatment program; wherein the at least one sensor unit comprises a gas sensor array with which the first and second values are determined from an aroma in the preparation chamber and/or in the surroundings outside the preparation chamber; determining at least one third value from the first value and the second value; comparing the third value with stored values; and conducting a treatment program as a function of the result of comparing the third value with the stored values.