Determining a state of a domestic appliance

A method performed by a dosing unit for placement within a treatment chamber of a washing machine, comprising:

• acquiring at least one set of acceleration data, wherein the at least one set of acceleration data is acquired by a sensor within the dosing unit during a rotational operation of the treatment chamber of the washing machine, wherein the at least one set of acceleration data at least partially represents a progression of the acceleration data determined by the sensor over a predetermined time interval, wherein the acceleration data is indicative of a movement of the dosing unit within the treatment changer of the washing machine, wherein the progression represented by the at least one set of acceleration data maps a curve as a curve progression, and wherein the curve progression is mapped over the predetermined time interval;
• determining evaluation data indicative of a load condition of the treatment chamber of the treatment chamber of the washing machine, wherein the evaluation data is determined in response to the at least one set of acceleration data, one or more characteristic patterns mapped by the curve progression and comparing the curve progression with a known characteristic pattern associated with a known rotational movement of the treatment chamber of the washing machines;
• and
• dispensing a preparation into the treatment chamber of the washing machine in response to the specific evaluation data.