Clumps often form in the ground coffee that is in the portafilter. In recent years, the so-called WDT technology (Weiss Distribution Technique) has become established to solve this problem. Using the needles attached to the wood, all lumps can be broken up using circular and stabbing movements. You can then use the espresso leveler to create a flat surface for tamping. This approach will give you the best extraction!
With this espresso distributor you can distribute the ground coffee evenly in your portafilter.
Dimensions: