portafilter

== English == === Etymology === Blend of portable +‎ filter, or possibly incompletely calqued from Italian portafiltro "filter-carrier". === Pronunciation === === Noun === portafilter (plural portafilters) A holder for ground espresso coffee that is attached to a group in an espresso machine to produce espresso. A similar-shaped device but without a bottom opening, used to backflush or clean an espresso machine.