Method of operating an individual beverage machine from a plurality of beverage machines, particularly hot beverage machines, preferably coffee machines , each an operator display and each with a communications unit , by means of a mobile apparatus with a communications unit , wherein each of the beverage machines is constructed for establishing communications connections with several mobile apparatus , characterised by the following method steps: a) providing a recipe or several recipes (R), which is or are personalised to a user, for a hot or cold beverage, particularly for a hot beverage, as a data set on the respective mobile apparatus ; b) automatic creation of a communications connection between one of the beverage machines - in the case of approach to this beverage machine - and the respective mobile apparatus ; c) transmitting the data set of the personalised recipe (R) or the several personalised recipes of the hot or cold beverage to the beverage machine ; d) temporary storage of the data set at the data memory of the beverage machine ; e) display of the personalised recipe (R) or the personalised recipes as a selection option or selection options on the operator display of the beverage machine ; f) triggering a preparation process at the beverage machine with selection of the personalised recipe (R) or one of the personalised recipes; and g) preparing and delivering the personalised beverage , and h) erasing the data set from the data memory of the beverage machine , particularly after interruption of the communications connection, i) wherein the beverage machine after establishing a communications connection in step f) frees a selection field on the operator display , wherein the personalised recipe or personalised recipes (R) is or are displayed by manual activation of this selection field . a) providing a recipe or several recipes (R), which is or are personalised to a user, for a hot or cold beverage, particularly for a hot beverage, as a data set on the respective mobile apparatus ; b) automatic creation of a communications connection between one of the beverage machines - in the case of approach to this beverage machine - and the respective mobile apparatus ; c) transmitting the data set of the personalised recipe (R) or the several personalised recipes of the hot or cold beverage to the beverage machine ; d) temporary storage of the data set at the data memory of the beverage machine ; e) display of the personalised recipe (R) or the personalised recipes as a selection option or selection options on the operator display of the beverage machine ; f) triggering a preparation process at the beverage machine with selection of the personalised recipe (R) or one of the personalised recipes; and g) preparing and delivering the personalised beverage , and h) erasing the data set from the data memory of the beverage machine , particularly after interruption of the communications connection, i) wherein the beverage machine after establishing a communications connection in step f) frees a selection field on the operator display , wherein the personalised recipe or personalised recipes (R) is or are displayed by manual activation of this selection field . <EOS>