Portafilter Insert Holder

Holder for 58mm standard portafilter inserts of various types e.g. single dose, double dose and blind inserts in different variations.

In order to increase the friction between the IKEA Skadis board and the holder I incorporated small shallow pockets on the rear side for small and thin (~1,5mm; I used this one) soft rubber pads so the holder will not move when the portafilter insert is removed from the holder.