54mm Bottomless Portafilter for Breville Espresso Machines ✔️ Fits 54mm three-ear models food grade stainless steel build This bottomless portafilter serves as a replacement part on select espresso machines helping baristas monitor flow and improve shot quality at home or in a cafe. ✅ Compatible with BES878 BES876 BES500 BES840 BES880 BES870 BES810 BES450 models ✅ Built from food grade stainless steel for safe long lasting daily use ✅ Wood handle offers ergonomic grip and easy removal for cleaning ✅ Lets you see golden espresso streams to spot and fix extraction issues 💡 What is a bottomless portafilter used for in espresso making? This tool gives a clear view of the extraction process so you can refine your technique every time. - Highlights channeling or uneven flow right away during the pull - Builds skills faster by showing real time results without any guesswork - Works as a handy daily driver for both new and experienced home baristas