The current classified listing of this machine contains info regarding the unusual provenance of My GS-1. I'm repeating that info here in case it's a factor to someone contemplating taking the plunge.
For those of you interested in provenance, th...
Ok, maybe I am over-analyzing here. I am still getting a working knowledge of the process of extraction within the portafilter. In a tamped dose, as the water is introduced and pressure builds to start extraction, the water sits on top of the puck...