Device and method for preparing a beverage, in particular for preparing a protein-containing mixed beverage

An apparatus for preparing a beverage, in particular for preparing a protein-containing mixed beverage, comprising:

• a mixing device;
• at least one first container for storing a pourable substrate;
• at least one first supply device which is provided to supply the mixing device with the pourable substrate from one of the first containers;
• at least one second container for storing an at least substantially liquid substrate;
• at least one second supply device which is provided to supply the mixing device with the at least substantially liquid substrate from one of the second containers;
• a third supply device which is provided to supply the mixing device with a carrier liquid;
• a dispensing device which is provided to dispense the beverage to a container able to be removed from/out of the apparatus,
• wherein the mixing device is provided to mix the pourable substrate and the at least substantially liquid substrate with the carrier liquid into an in particular at least substantially homogeneous beverage and dispense it to the dispensing device.