A computer-implemented method for determining a freshness state of a food in a storage container arranged in a household cooling appliance, wherein due to varied criteria the freshness state of the food can be changed in such a way that consumption is no longer possible or no longer advisable, the method comprising the following steps: - performing a first freshness state determination cycle of the food, in which - a first operating temperature of at least one MOX sensor is set by the at least one MOX sensor and at this first operating temperature a gas mixture in the storage container is captured by the MOX sensor, - at least one second operating temperature of the MOX sensor that is different from the first one is set by the MOX sensor and at this second operating temperature the gas mixture in the storage container is captured by the MOX sensor, - determining a state of the gas mixture depending on the information captured at the two operating temperatures during the first freshness state determination cycle by an evaluation unit (6, 6`), - performing a second freshness state determination cycle of the food temporally consecutively to the first freshness state determination cycle, wherein in the second freshness state determination cycle - the first operating temperature of the MOX sensor is set by the MOX sensor and at this first operating temperature the gas mixture in the storage container is captured by the MOX sensor, - at least the second operating temperature of the MOX sensor that is different from the first one is set by the MOX sensor and at this second operating temperature the gas mixture in the storage container is captured by the MOX sensor, - determining a state of the gas mixture depending on the information captured at the two operating temperatures during the second freshness state determination cycle by the evaluation unit (6, 6'), - determining the freshness state of the food in the storage container depending on the state of the gas mixture that was determined in the first freshness state determination cycle, and depending on the state of the gas mixture which was determined in the at least second freshness state determination cycle, by the evaluation unit (6, 6'). - performing a first freshness state determination cycle of the food, in which - a first operating temperature of at least one MOX sensor is set by the at least one MOX sensor and at this first operating temperature a gas mixture in the storage container is captured by the MOX sensor, - at least one second operating temperature of the MOX sensor that is different from the first one is set by the MOX sensor and at this second operating temperature the gas mixture in the storage container is captured by the MOX sensor, - a first operating temperature of at least one MOX sensor is set by the at least one MOX sensor and at this first operating temperature a gas mixture in the storage container is captured by the MOX sensor, - at least one second operating temperature of the MOX sensor that is different from the first one is set by the MOX sensor and at this second operating temperature the gas mixture in the storage container is captured by the MOX sensor, - determining a state of the gas mixture depending on the information captured at the two operating temperatures during the first freshness state determination cycle by an evaluation unit (6, 6`), - performing a second freshness state determination cycle of the food temporally consecutively to the first freshness state determination cycle, wherein in the second freshness state determination cycle - the first operating temperature of the MOX sensor is set by the MOX sensor and at this first operating temperature the gas mixture in the storage container is captured by the MOX sensor, - at least the second operating temperature of the MOX sensor that is different from the first one is set by the MOX sensor and at this second operating temperature the gas mixture in the storage container is captured by the MOX sensor, - the first operating temperature of the MOX sensor is set by the MOX sensor and at this first operating temperature the gas mixture in the storage container is captured by the MOX sensor, - at least the second operating temperature of the MOX sensor that is different from the first one is set by the MOX sensor and at this second operating temperature the gas mixture in the storage container is captured by the MOX sensor, - determining a state of the gas mixture depending on the information captured at the two operating temperatures during the second freshness state determination cycle by the evaluation unit (6, 6'), - determining the freshness state of the food in the storage container depending on the state of the gas mixture that was determined in the first freshness state determination cycle, and depending on the state of the gas mixture which was determined in the at least second freshness state determination cycle, by the evaluation unit (6, 6').