March 2007
Intermediate to advanced
24 pages
56m
English
Content preview from DIY Coffee
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Chapter 2. The Bottomless Portafilter
Photograph by Will O’Brien
Mod your espresso maker’s filter holder for a tastier cup. By Will O’Brien
In my office at home, one end of the room is devoted to computers, electronics, and my assorted projects. The other is the home of the holy grail of caffeine: my espresso bar. That’s where I measure, grind, and tamp my way to produce some beautiful espresso. I’ve been tuning and tweaking my setup for the last six months or so, and there’s no end in sight. My most recent modification involved some power tools and my portafilter.
The portafilter is the chrome-plated coffee filter holder that most people only notice as the spent grounds are being beaten from its shiny grasp. In this case, I drilled, cut, and ground out the bottom of it to get what’s known as a “bottomless” or “naked” portafilter.
No stock machine comes with a bottomless portafilter. The modification can sometimes result in espresso going in strange directions — like the wall on the other side of the room. The only side affect I’ve observed is a tiny amount of spatter on the top of my espresso cup. So why go bottomless? For some, it’s simply so they can fit a triple basket in the stock portafilter. The espresso industry refers to the bottomless portafilter as a “training tool.” You can even buy your own from espressoparts.com. As a training tool, the bottomless porta-filter is excellent ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.