A wand for dispensing vapor for heating and/or frothing a quantity of milk by vapor being introduced into a container in which the milk is located. The wand is provided with a first end, in the region of which it receives the vapor, and a second end, through which the vapor is dispensed. The second end can be positioned inside and outside the container by means of angular movements of the wand about an articulation to which the first end is connected. The articulation is mounted on a portion of a machine for preparing drinks. The wand further comprises a thermoelectrical sensor for detecting the temperature reached by the milk in the container. The sensor can transmit an electrical signal relating to the detected temperature outside the wand.
