ECM Mechanika Slim PID Espresso MachineThe ECM Mechanika Slim PID is a compact heat exchanger espresso machine that refuses to compromise on performance. Built in ECM's Heidelberg factory, it packs a 2. 2 liter stainless steel boiler, an iconic E61 group head, and integrated PID temperature control into a footprint that fits comfortably on counters where full size machines simply can't. For intermediate home baristas who want commercial grade steam power, more temperature options than