The Bottomless (Naked) Portafilter is a must-have tool, if you want to watch perfection of coffee extraction at its best. A bottomless portafilter clearly exhibits how the extraction is progressing, so that you could make required changes on time to achieve the perfect extraction. This equipment is simply marvelous for training purpose since you can easily notice if channeling occurs - a sign of uneven tamping or grind levels. Its excellent for pulling a perfect shot of espresso every time. 

Compatible with: Bezzera BZ models, including BZ07, BZ10, BZ13, BZ16,  BZ99, BZ35, BZ40 and Bezzera Duo.  For E61 group machines like the Medea, Magica, Selenia, Unica or Matrix please get the E61 bottomless.

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