Abstract: A domestic system including at least one item of domestic furniture and/or domestic appliance, in particular a domestic refrigerator, having an improved determining routine, in particular for determining a storage characteristic variable, includes a detection unit to detect at least one consumer product disposed and/or to be disposed within the item of domestic furniture and/or domestic appliance and to provide a consumer product characteristic variable correlated to the consumer product. At least one predefined database can store predefined consumer product characteristic variables of consumer products of different types, and a computer unit can compare the consumer product characteristic variable with the predefined consumer product characteristic variables for determining a storage characteristic variable.