FAQ Naked Portafilters: What is a naked portafilter and why should I use one?

A naked portafilter, also called a bottomless portafilter, is a filter holder without a spout. This allows you to see the espresso extraction directly, which helps you improve your technique and detect errors such as channeling. With the naked portafilter you can also view the extraction from below very nicely, and create fun visuals for social media.