Base Knock

Why the name Knock?

After the first ramping of the espresso, a light knock is applied to the side of the portafilter, which causes all the espresso powder to fall from the side into the portafilter. Then it is tamped again. To avoid having to use the tamper base for this light tap on the portafilter, which could damage the soft portafilter, or even the wooden handle, the tamper can now be knocked with the silicone ring incorporated in the base. We have had this invention protected by law.