Silicone Bellows Upgrade for Breville / Sage Barista Express Impress - Near Zero Retention Colour & Material:Black - Silicone 49mm Steel Spring An experimental

49mm Steel Spring An experimental piece to test resistance against the expansion of the puck during shot

The larger diameter body allows for needles to be spaced out more

but it's easy to pop out by gently tapping the portafilter upside down

All configurations are in black

but the 3D printed seam line will be aligned with the grind adjustment indicator

Silicone Bellows Upgrade for Breville / Sage Barista Express Impress - Near Zero Retention Colour & Material:Black - Silicone 49mm Steel Spring An experimentalThis silicone bellows upgrade can help you achieve 0. 0g to 0. 2g retention on every grind* when you single dose on your Breville Sage Barista Express Impress and other models. It fits in between your machine's stock hopper and stock lid and transforms it into a blower, so you can say goodbye to the usual varying retention of 0. 2 0. 5 grams of coffee. This bellows was the very first to market back in 2021, and has evolved after 3 years of iterations