Operating system for a machine in the beverage industry, the operating system comprising: eyeglasses for a user of the operating system, wherein said eyeglasses comprise: a display module, which is designed in particular as a head-mounted display or a virtual retina display or a projector, and is adapted to display at least a control element and information of a human machine interface, HMI; a transceiver for exchanging data between the operating system and the machine; an input module adapted to receive one or more user input from the user with respect to at least one of said control elements, wherein said input module comprises at least one microphone (46a, 46b) for inputting speech information, and wherein the one or more user input comprise user input for controlling the HMI and user input for controlling the machine, wherein the user input for controlling the HMI comprises a speech command for navigating the menu of the HMI, and the user input for controlling the machine comprises a speech command for navigating an HMI of the machine; and wherein said eyeglasses comprise a processing module with a speech recognition module, adapted to convert the received one or more user input into an input signal for controlling the machine or an input signal for controlling the HMI, respectively, and the processing module being further adapted to output the input signal to be forwarded to the HMI or via the transceiver to the machine. eyeglasses for a user of the operating system, wherein said eyeglasses comprise: a display module, which is designed in particular as a head-mounted display or a virtual retina display or a projector, and is adapted to display at least a control element and information of a human machine interface, HMI; a transceiver for exchanging data between the operating system and the machine; an input module adapted to receive one or more user input from the user with respect to at least one of said control elements, a display module, which is designed in particular as a head-mounted display or a virtual retina display or a projector, and is adapted to display at least a control element and information of a human machine interface, HMI; a transceiver for exchanging data between the operating system and the machine; an input module adapted to receive one or more user input from the user with respect to at least one of said control elements, wherein said input module comprises at least one microphone (46a, 46b) for inputting speech information, and wherein the one or more user input comprise user input for controlling the HMI and user input for controlling the machine, wherein the user input for controlling the HMI comprises a speech command for navigating the menu of the HMI, and the user input for controlling the machine comprises a speech command for navigating an HMI of the machine; and wherein said eyeglasses comprise a processing module with a speech recognition module, adapted to convert the received one or more user input into an input signal for controlling the machine or an input signal for controlling the HMI, respectively, and the processing module being further adapted to output the input signal to be forwarded to the HMI or via the transceiver to the machine.