A 58mm portafilter with a bottomless base allows you to troubleshoot dose and grind distribution for a more even extraction.

Use this product for consistency, crema, taste, troubleshooting and training of the espresso extraction process.

 

This portafilter is compatible with Oracle Touch, Oracle or Dual Boiler espresso machines; it is not compatible with 54mm Breville machines like the Breville Barista Express, Breville Barista Pro, Barista Touch, Infuser, Duo etc.  A 54 mm Bottomless Portafilter can be purchased here