The IKAPE Flat-Base E61 Bottomless Portafilter is engineered for E61 group head machines with a 600g stainless steel and aluminum alloy build, a flat-bottom design that eliminates the need for a portafilter holder, and an IKAPE Honeycomb high-extraction basket for a cleaner, sweeter cup - every shot. Flat-Base Design: Sits perfectly level on any flat surface - tamp directly without a portafilter holder or tamping station, streamlining your workflow at home or in a café. IKAPE Honeycomb High-Extraction Basket: Dual-layer honeycomb precision engineering maximizes water distribution, minimizes channeling, and increases extraction yield for a professional-grade shot. Naked Bottomless Design: Full visibility of the extraction process lets you diagnose channeling in real-time and refine your technique - resulting in enhanced sweetness and rich, velvety crema. Heavy-Duty 600g Build: Premium stainless steel and aluminum alloy construction delivers professional balance, heat stability, and long-term durability.