Casabrews 58mm Bottomless Portafilter with 3 Ears – Fits 5700 Series & Neutron Pro

Elevate your espresso with the Casabrews 58mm Bottomless Portafilter

Designed to reveal the artistry behind every shot, this 58mm bottomless portafilter combines durability, precise fit, and an ergonomic grip. The three-ear design helps secure a tight seal with compatible Casabrews machines, while the natural wood handle adds a warm, comfortable touch to manual brewing. Visual feedback from the bottomless head makes it easier to observe flow, aiding you in tuning grind, distribution, and tamping for a balanced extraction. While improvements are possible, they depend on your setup and technique, not guarantees.

What makes this Casabrews portafilter stand out

• 58mm DIAMETER: engineered to fit 58mm baskets with a three-ear bottomless design. Compatible with CASABREWS 5700Gense, 5700Pro, CM5700, Neutron Pro, Ultra, and 4700Gense (not compatible with 3700 Gense).
• MULTIPLE ACCESSORIES: ships with a double cup filter basket and a 58mm puck screen. The puck screen helps reduce grounds sticking to the brewing head, aiding cleanup after the pull.
• EXTRACTION VISIBILITY: a bottomless setup lets you watch the coffee as it pours, helping you spot channeling, flow irregularities, and crema development in real time.
• HIGH-QUALITY BUILD: the portafilter head is cast in food-grade stainless steel and hand-polished for a precise fit; the natural solid wood handle provides an ergonomic grip for confident manual control.
• COMPATIBILITY NOTE: designed to seal well with the CASABREWS 5700 series, Neutron Pro, Ultra, and 4700Gense. Tolerances vary by machine, so check ear thickness (5.9mm) and fit before purchasing.

What’s included

• Double cup filter basket
• 58mm espresso puck screen

Real-life use and practical benefits

In daily use, the bottomless design offers a candid view of your extraction, allowing you to identify quick adjustments that may improve flow and balance. Expect to gain insights into grind size, tamping pressure, and distribution as you experiment with different roasts and doses. The combination of a sturdy stainless steel head and a comfortable wooden handle makes long sessions feel manageable, while the included puck screen helps keep the brew head cleaner between pulls.

How to use and care guidance

Attach the portafilter to a compatible Casabrews machine, dose your coffee, and lock it in. Observe the pour, note any uneven streams, and adjust grind, dose, and tamping pressure accordingly. After use, rinse and dry to preserve the polished finish and maintain optimal performance.

Fit, verification, and notes

While the design aims for a snug seal with the 5700 series, Neutron Pro, Ultra, and 4700Gense, tolerances differ. If you are unsure about fit, verify the ear thickness at 5.9mm and test in your machine before committing to a full purchase.