In this video you will learn how a semi-automatic espresso machine works. Using a machine with cutaway components, Todd and Marc from WholeLatteLove.com trace the path of water movement through the machine. Get an inside look at cutaway components, their purpose and how they operate. Components include: E61 brew group, heat-exchange boiler, solenoid valve, thermal siphon system, steam valve, one-way valve, anti-burn wands, rotary pump, OPV valve and much more. The machine featured in this video is the ECM Technika IV Profi Switchable. It's a semi-automatic espresso machine with heat-exchange boiler and rotary pump. Special thanks to ECM for providing the machine for this presentation!