The KB90 was designed for maximum output and workflow as the ultimate evolution of the Linea PB. Featuring game-changing innovation for faster and more ergonomic handling: "Straight In portafilter" no longer requires a tightening of the portafilter, but allows it to be simply inserted straight with zero wrist-strain! The KB90 also features a new "steam flush" function, which automatically flushes the groups with steam and water for reduced coffee residue build-up. Multiboiler machine with insulated pro-touch steam wands.