A coffee maker is disclosed, having at least one coffee bean container adapted to receive whole coffee beans and a brewing module including a brewing chamber for brewing a coffee beverage by means of hot brewing water. The coffee bean container is subdivided into two compartments, whereby an individual coffee grinder assembly is assigned to each compartment. The outlets of the coffee grinder assemblies open into a common feeding channel serving for filling the brewing chamber with ground coffee. The coffee maker further comprises a slide controller serving for preselecting the proportional amount of coffee beans to be discharged from the particular compartment and ground by the coffee grinder assembly assigned to the particular compartment. With such a coffee maker, a coffee beverage can be prepared, using different blends of freshly ground coffee beans.