An essential tool in any home barista’s arsenal, the Avanti knock box allows quick, efficient disposal of spent coffee grinds and frees up the portafilter for more brewing. Small and compact, the knock box has an anti-slip ring on the base which prevents it from moving about. Strong and sturdy, simply strike the portafilter against the knock bar to remove the used grinds. To empty, just lift the rubber bar out and discard the waste. It stores easily on the espresso machine’s drip tray to reduce clutter on your kitchen bench top.