Normcore Convex Billet Portafilter Basket – Ø32mm Extraction Area

The Normcore Convex Billet Portafilter Basket Kit is engineered to create extraction resistance through basket geometry, not just grind fineness. By narrowing the internal diameter and forming a deeper puck, it enables controlled low-flow extraction with coarser grind settings. This helps reduce excessive fines and supports a cleaner cup with more sweetness, clarity, balance, and a smoother mouthfeel. Unlike traditional baskets that often rely on a finer grind to build resistance, the Convex Billet Basket creates resistance through its shape. This geometry-driven approach allows for a more intentional extraction style, helping baristas achieve a sweeter, cleaner, and more refined espresso profile. CNC-machined from solid 304 stainless steel and featuring Normcore’s proprietary droplet-shaped hole design, it is built for precision, consistency, and a distinctive brewing experience. Basket Size Flow Type Hole Size Eff. Area * Height Dose * Hole Count 54mm Low Flow 0.18mm Ø32mm 33mm 18g 1353 54mm Standard 0.28mm Ø32mm 33mm 18g 444 58mm Low Flow 0.18mm Ø32mm 32mm 18g 1473 58mm Standard 0.28mm Ø32mm 32mm 18g 444 58mm Low Flow (Deep) 0.18mm Ø32mm 38mm 22g 1473 58mm Standard (Deep) 0.28mm Ø32mm 38mm 22g 444 * Compatibility Note: “Ø32mm” refers to the internal extraction area, not the outer diameter. * Actual capacity may vary based on grind size, roast level, and humidity. Note: The CNC basket is machined from a solid block of 304 stainless steel, so the dosing funnel may not stick magnetically. However, it can still be placed on top to guide coffee grounds into the chamber. THE SET INCLUDES: 1 - Convex Billet Portafilter Basket