Patent ID: 8656826

Claim:
An espresso coffee machine comprising: one or more operating units, each operating unit comprising: a system for controlling and adjusting espresso coffee brewing parameters; a boiler; a pump configured to change a speed thereof so as to vary a brewing pressure; a processor; a rheostat operatively connected to the pump, operatively connected to the processor, the rheostat operatively configured to activate the pump, the rheostat operatively configured to allow a user to manually modulate the espresso coffee brew extraction pressure, and the rheostat operatively configured to change a speed of the pump; a heating unit; and an aroma extraction and espresso coffee brew dispensing unit; wherein pressure is manually adjusted acting on said rheostat which changes, through said processor, the speed of the pump so that a user can change pressure as desired for brewing of espresso; wherein said processor is operatively coupled to: a pressure control module; a temperature control module; and a user interface; wherein the processor is operatively configured to store pressure profile(s); and wherein each operating unit further comprises a pressure gauge.