DESCRIZIONE
The invention proposes a method of controlling food temperature, the method comprising the steps of: heating food to a first target temperature; exciting a fluorescent marker of the food, wherein the fluorescent marker corresponds to a fluorophore of nutrient substance and/or anti-nutrient substance within the food; detecting current fluorescence- related parameter value of the fluorescence marker, and based on current heating time and predetermined relationships between heating time and fluorescence-related parameter value, calculating current reference fluorescence-related parameter value; comparing the detected current fluorescence-related parameter value with the calculated current reference fluorescence-related parameter value; and controlling heating power supplied to the food based on a comparison result.