The Tubbi Knockbox is the perfect accessory for the home barista to help dispose of espresso pucks. It was over a year in development and went through many prototypes before this final brilliant, yet very simple design was finalized.
The box is made of ABS plastic and is extremely tough. The food safe rubber bar is reinforced with stainless steel, just like the classic knockbox, the rubber bar absorbs the energy from the portafilter to minimize the noise.
There is a non-slip rubber pad on the bottom that prevents it moving and reduces noise while being used.
The knockbox may be small but it can comfortably hold 15 double pucks of coffee before it needs emptying. To empty just lift the rubber bar out and discard the coffee. The plastic tub is dishwasher safe but a simple rise with a little detergent works every time.