Bottomless (aka naked) portafilters are an essential tool for identifying and correcting extraction problems that cannot be seen with standard spouted portafilters. Issues such as under- or overdosing, inconsistent or incorrect grind size, uneven tamp pressure, or unevenly distributed grinds, can all cause improper extraction.

One of the most common visible signs that you're experiencing extraction issues is through channeling (or spurting), which cannot be seen with a standard spouted portafilter. Exposing the bottom of your portafilter basket will allow you to witness these extraction issues first hand, providing an opportunity to diagnose and improve the quality of your shots.

NEW FEATURE UPDATE: We've modified our bottomless portafilters to now include a 15° tilt to the handle, providing improved grip and ergonomics.

More Info

• 58mm bottomless portafilter and basket
• Construction: 304 stainless steel
• Compatible with the Breville Dual Boiler, Breville Oracle, Breville Oracle Touch