Reading through the forums at CoffeeGeek, I came across a thread about naked portafilters. Apparently, baristas at Seattle coffeehouse Zoka modified a portafilter (the cup that holds the espresso grinds) so that the espresso comes straight from the basket, rather than through a lower piece that directs the espresso into the cup. I don’t know how it tastes, but the photos taken by Jon Rosenthal are incredible.

I can tell you that Jon Rosenthal’s coffee tastes better than the photos, I should know he makes me a cup every morning!
I’m jealous!