Bottomless Filterholder Astoria 4U

The bottomless filterholder, sometimes called a 'naked' portafilter, has become an essential tool for quality-focused baristas. Designed specifically for Astoria and 4U espresso machines, this professional filter holder eliminates the spout assembly to reveal the extraction basket directly, allowing you to observe channelling, uneven tamping, and extraction quality in real time.

This filterholder delivers improved espresso extraction with greater crema production and enhanced sensory quality. The open-bottom design prevents residue buildup and eliminates the burnt odours that can develop from carbon deposits in traditional spouted portafilters.

Specifications

• Capacity: 21 g
• Compatibility: Astoria + 4U machines
• Design: Bottomless (naked) style — no spout assembly