Device for processing roasted coffee beans, characterized in that the device comprises a thermal unit that ensures that the temperature of the roasted coffee beans during the grinding process and at least at the start of the grinding process is between 30°C and 150°C, in particular between 35°C and 100°C, preferably between 40°C and 90°C, more preferably between 40°C and 60°C, the device comprising a modular roller mill that can be optionally equipped with one or more roller passages, and the thermal unit comprises a tempering device for the grinding unit, which is designed so that the temperature of the grinding material can be maintained between 30°C and 150°C, in particular between 35°C and 100°C, preferably between 40°C and 90°C, particularly preferably between 40°C and 60°C, wherein the tempering device for the milling unit is a tempering device for milling tools, wherein the tempering device maintains the milling tools during the milling process in at least one milling stage at a temperature or a temperature range between 30°C and 150°C, in particular between 35°C and 120°C, more particularly between 40°C and 110°C, preferably between 40°C and 90°C, particularly preferably between 40°C and 60°C or between 60°C and 80°C, the milling tools are permeated with channels through which a tempering liquid can be introduced into the milling tools, the temperature of the tempering liquid being controllable and/or adjustable in such a way that the tools are brought to the desired target temperature or the desired target temperature range, a tempering unit for controlling the temperature of tempering liquid introduced into channels of the milling tools preferably comprises a temperature sensor arranged in a roller, characterized in that the thermal unit comprises a tempering device and a grinding feed device which are designed so that the roasted coffee beans can be tempered for the start of the grinding process to temperatures of the grinding material of 30°C and 150°C and can be ground at these temperatures. the device comprises a thermal unit that ensures that the temperature of the roasted coffee beans during the grinding process and at least at the start of the grinding process is between 30°C and 150°C, in particular between 35°C and 100°C, preferably between 40°C and 90°C, more preferably between 40°C and 60°C, the device comprising a modular roller mill that can be optionally equipped with one or more roller passages, and the thermal unit comprises a tempering device for the grinding unit, which is designed so that the temperature of the grinding material can be maintained between 30°C and 150°C, in particular between 35°C and 100°C, preferably between 40°C and 90°C, particularly preferably between 40°C and 60°C, wherein the tempering device for the milling unit is a tempering device for milling tools, wherein the tempering device maintains the milling tools during the milling process in at least one milling stage at a temperature or a temperature range between 30°C and 150°C, in particular between 35°C and 120°C, more particularly between 40°C and 110°C, preferably between 40°C and 90°C, particularly preferably between 40°C and 60°C or between 60°C and 80°C, the milling tools are permeated with channels through which a tempering liquid can be introduced into the milling tools, the temperature of the tempering liquid being controllable and/or adjustable in such a way that the tools are brought to the desired target temperature or the desired target temperature range, a tempering unit for controlling the temperature of tempering liquid introduced into channels of the milling tools preferably comprises a temperature sensor arranged in a roller, characterized in that the thermal unit comprises a tempering device and a grinding feed device which are designed so that the roasted coffee beans can be tempered for the start of the grinding process to temperatures of the grinding material of 30°C and 150°C and can be ground at these temperatures.