Compatible with various heat sources

Versatile Functionality - Accommodates portafilter

ensuring flaw-free brewing

Caffe Knockout Bag Features

Introvert Bellows + Single Dose Hopper for Eureka Grinders Heat Exchanging Boiler Espresso Machine Compatible with various heat sourcesBring zero retention precision to your coffee workflow with the Introvert Bellows + Single Dose Hopper for Eureka Grinders. Designed specifically for the Eureka Mignon range, this upgrade replaces the stock hopper with a single dose setup that improves efficiency and freshness in every grind. The integrated bellows purge eliminates grind retention, ensuring each dose is as consistent as the last. Made to fit seamlessly, this hopper and bellows combo