The Tubbi knockbox is the perfect accessory for home baristas to help
you dispose of your espresso pucks. It has been over a year in
development and gone through many prototypes but finally we got there in
the end with a brilliant, yet very simple design. All it is, is a
plastic tub and a bar! No nuts or bolts or anything.
knockbox may be small but it can comfortably hold 10 double pucks of
coffee before it needs emptying. To empty just lift the rubber bar out
and discard the coffee as you wish. A silicon ring on the bottom
prevents it moving about the place and also helps to reduce the noise.