Bottomless Portafilter with Handle M12 – 21g Filter Basket with Spring

This bottomless portafilter (sometimes called a 'naked' portafilter) has become an essential tool for quality-focused baristas. The open-bottomed design allows you to observe extraction in real-time, helping diagnose channelling, uneven tamping, or poor distribution.

Manufactured with an M12 thread handle, 21-gram filter basket, and integrated basket-fixing spring, this portafilter improves extraction quality and crema production compared to spouted alternatives. The exposed basket eliminates residue buildup and odours from carbon deposits that can affect flavour.

Specifications

• Filter basket capacity: 21 grams
• Handle thread: M12
• Includes: Filter basket fixing spring
• Design: Bottomless (naked) portafilter

Features

• Improves espresso extraction quality
• Produces greater crema volume
• Enhances sensory characteristics of the espresso
• Eliminates residue and sediment buildup
• Prevents burnt odours during extraction caused by carbon deposits
• Allows visual observation of extraction flow

Compatible Part Numbers