The Rhino Waste Tube/ Knock Box makes disposing of used coffee grounds convenient, clean, and quick. When your espresso shot is complete, simply knock the portafilter against the rubber bar and the grounds will fall into the waste tube.
The tube is 135mm wide and 150mm high. It’s large enough for entertaining or a busy household, but small enough to not be a spatial burden. It’s perfectly sized for home espresso lovers.
The Rhino Waste Tube is dishwasher safe, but first you must remove the rubber knock bar. The rubber base within the tube may be cleaned in the dishwasher.