1. A machine for dispensing beverages, comprising: at least an infusion group for preparing coffee, a user interface, and an electronic programmable control unit; wherein said control unit is associated with a recognition system for recognizing at least one biometric characteristic of a user, said control unit being programmed to actuate at least one function of the machine based upon the recognition of the user, wherein said control unit is programmed for associating a customized menu to at least one user recognizable by said recognition system, wherein for each beverage inserted into the customized menu, one or more supply parameters are set by the user, wherein said machine is programmed to display the customized personalized menu and acquire a command of the user for selecting the chosen beverage from said personalized menu wherein said machine is programmed to display on the user interface, in the absence of the operation of the recognition system, a list of a plurality of stored user names, each user having an associated customized menu stored by the machine, and to allow the user to manually select one or more of the stored customized menus associated with one or more of said stored users, and wherein said control unit is programmed for allowing a user, through said interface, to select a standard menu or a menu selected from a plurality of customized menus, each of which is associated with a respective user.