The beverage producing system comprises a beverage producing machine (1) and a jug (3). The beverage producing machine (1) is provided with a steam nozzle (41)and the jug (3) is provided with a steam duct (25) having a steam inlet end (25A) designed and arranged for connection to the steam nozzle (41). The steam nozzle (41) is housed in a recess (11) having an entry aperture (35), a bottom wall (39) and an upper ceiling (38). The steam nozzle (41) is arranged at the bottom wall (39) of the recess (11) and is oriented towards the upper ceiling (45). The steam inlet end (25A) of the steam duct (25) projects from the jug (3), such that a connection between the steam nozzle (41) and the steam duct (25) is established by introducing the steam inlet end (25A) in the recess (11) and by lowering the jug (3) until a fluid connection is established between the steam nozzle (41) and the steam inlet end (25A) of the steam duct (25).