A 58mm bottomless portafilter for E61 group machines such as Rocket Espresso, built around a 21g triple basket. The open bottom lets you watch the extraction and spot channeling, which is why baristas use one for dialing in. The stainless body has a slanted textured handle, and you can swap it for maple or walnut wood. It is not compatible with Rancilio machines. Owners rate it modestly; the common complaints center on basket fit and finish rather than the concept.
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Owners like the open-bottom view for spotting channeling and the comfortable handle, but ratings are middling. Several report basket fit and finish issues.
This is a bottomless portafilter for Rocket Espresso and other E61 group machines.
The handle is textured and slanted. It comes in classic black, and custom wood handles in maple or walnut are also offered. The portafilter has a 58mm diameter and a 21g triple basket.
