What is a pressurized portafilter? How about a non-pressurized portafilter? Is one better than the other? What about those bottomless portafilters — are they necessary or just a random geek accessory?
Gail breaks down the intricacies of one of the most essential elements of an espresso machine — explaining how they work, why you would want one type over another and what purpose, if any, bottomless portafilters have.
A few times per week, a new Rancilio Silvia owner calls in with this question — what the heck is that 2nd tube for? The machine diagram in the user manual hasn’t been updated by Rancilio to show this tube or describe what it’s for, so we recorded this for posterity. Gail shows us the tubes and talks about their functions.