An automatic beverage preparation machine comprising: - a brewable substance storage unit comprising one or more containers fillable either with one and the same type of brewable substance or with different types of brewable substances; - at least two automatic feeding devices to feed dosed quantities of brewable substances; - a brewing unit comprising at least two brewing groups configured to receive from respective automatic feeding devices, at the beginning of a brewing cycle, dosed quantities of brewable substances necessary for the preparation of selected beverages and to carry out one and the same infusion process to produce one and the same beverage, e.g., coffee, from respective brewable substances either of the same type or of different types contained in the brewable substance storage unit; - a beverage delivery unit comprising at least two beverage delivery nozzles to deliver the beverages produced by the brewing groups; - a user interface configured to allow beverages deliverable by the beverage vending machine 1 to be user-selectable; and - an electronic control unit connected to the brewing groups and to the user interface characterized in that said electronic control unit is configured to control operation of the brewing groups to cause the following beverage production modes to be selectively performable in response to corresponding single user-selections: - a first beverage production mode, in which the brewing groups are controlled to simultaneously produce the same quantity of said beverage from respective brewable substances of the same type; - a second beverage production mode, in which the brewing groups are controlled to simultaneously produce the same quantity of said beverage from respective brewable substances of different types; - a third beverage production mode, in which the brewing groups are controlled to simultaneously produce different quantities of said beverage from respective brewable substances either of the same type or of different types; and - a fourth beverage production mode, in which the brewing groups are controlled to simultaneously produce the same quantity of said beverage from respective brewable substances of the same type, but in a greater quantity than that produced in the first beverage production mode. - a brewable substance storage unit comprising one or more containers fillable either with one and the same type of brewable substance or with different types of brewable substances; - at least two automatic feeding devices to feed dosed quantities of brewable substances; - a brewing unit comprising at least two brewing groups configured to receive from respective automatic feeding devices, at the beginning of a brewing cycle, dosed quantities of brewable substances necessary for the preparation of selected beverages and to carry out one and the same infusion process to produce one and the same beverage, e.g., coffee, from respective brewable substances either of the same type or of different types contained in the brewable substance storage unit; - a beverage delivery unit comprising at least two beverage delivery nozzles to deliver the beverages produced by the brewing groups; - a user interface configured to allow beverages deliverable by the beverage vending machine 1 to be user-selectable; and - an electronic control unit connected to the brewing groups and to the user interface characterized in that said electronic control unit is configured to control operation of the brewing groups to cause the following beverage production modes to be selectively performable in response to corresponding single user-selections: - a first beverage production mode, in which the brewing groups are controlled to simultaneously produce the same quantity of said beverage from respective brewable substances of the same type; - a second beverage production mode, in which the brewing groups are controlled to simultaneously produce the same quantity of said beverage from respective brewable substances of different types; - a third beverage production mode, in which the brewing groups are controlled to simultaneously produce different quantities of said beverage from respective brewable substances either of the same type or of different types; and - a first beverage production mode, in which the brewing groups are controlled to simultaneously produce the same quantity of said beverage from respective brewable substances of the same type; - a second beverage production mode, in which the brewing groups are controlled to simultaneously produce the same quantity of said beverage from respective brewable substances of different types; - a third beverage production mode, in which the brewing groups are controlled to simultaneously produce different quantities of said beverage from respective brewable substances either of the same type or of different types; and - a fourth beverage production mode, in which the brewing groups are controlled to simultaneously produce the same quantity of said beverage from respective brewable substances of the same type, but in a greater quantity than that produced in the first beverage production mode.