Coffee machine comprising a flow line system having a water supply, a pump, a valve device for controlling the flow paths, a continuous-flow heater and at least one outlet nozzle (21, 22); - a brewing chamber; - at least two storage containers (71, 72) for keeping different types of dry substance available, which substance consists of coffee beans; - a supply unit for selectively supplying the dry substance from the storage containers (71, 72) into the brewing chamber; - a control device (18, uC) for activating and deactivating the pump, the valve device and the continuous-flow heater in such a way as to cause the dry substance to be brewed and a beverage to be produced, the control device (18, uC) comprising the following: - a memory for storing specific parameters for two or more bean types (A, B, C) and specific beverage parameters for a selected or configured beverage; the control device (18, uC) comprising an assignment unit which is configured as follows: - to determine a specified total amount of dry substance; - to determine a first proportion for the addition of a first bean type (A, B, C); - to determine a second proportion for the addition of a second bean type (A, B, C); the assignment unit being configured or programmed in such a way that the first proportion and the second proportion result on the basis of the specified specific beverage parameters of the configured beverage, in order to control the supply unit for supplying the beans with the quantity corresponding to their determined proportion in the brewing chamber, characterised in that the bean parameters can be entered by the user in an initialisation mode by means of an operating device and can be stored in the memory. - a brewing chamber; - at least two storage containers (71, 72) for keeping different types of dry substance available, which substance consists of coffee beans; - a supply unit for selectively supplying the dry substance from the storage containers (71, 72) into the brewing chamber; - a control device (18, uC) for activating and deactivating the pump, the valve device and the continuous-flow heater in such a way as to cause the dry substance to be brewed and a beverage to be produced, - a memory for storing specific beverage parameters for a selected or configured beverage; the control device (18, uC) comprising an assignment unit which is configured as follows: - to determine a specified total amount of dry substance; - to determine a first proportion for the addition of a first bean type (A, B, C); - to determine a second proportion for the addition of a second bean type (A, B, C); - to determine a specified total amount of dry substance; - to determine a first proportion for the addition of a first bean type (A, B, C); - to determine a second proportion for the addition of a second bean type (A, B, C); the assignment unit being configured or programmed in such a way that the first proportion and the second proportion result on the basis of the specified specific beverage parameters of the configured beverage, in order to control the supply unit for supplying the beans with the quantity corresponding to their determined proportion in the brewing chamber, characterised in that the bean parameters can be entered by the user in an initialisation mode by means of an operating device and can be stored in the memory.