Bottomless Portafilter with Handle M10 – 21g Filter with Spring

If you're experiencing channelling, uneven extraction, or inconsistent crema, a bottomless portafilter is an essential diagnostic and training tool for any machine owner. This naked filter holder exposes the underside of your coffee basket during extraction, revealing flow issues and technique flaws that remain hidden with a spouted portafilter. Users will find this an invaluable addition to their home espresso setup.

This bottomless portafilter features M10 thread compatibility, a 21-gram capacity filter basket, and an integrated filter-fixing spring. The 6.6mm wing design ensures secure lock-in to your group head.

Specifications

• Thread: M10
• Filter capacity: 21 grams
• Wing thickness: 6.6mm
• Included: Handle, filter basket, fixing spring
• Type: Bottomless (naked) portafilter

Benefits of bottomless portafilter use

• Improves extraction of espresso coffee
• Greater amount of crema
• Improves sensory quality
• Does not create residues or grounds buildup
• No smell during extraction due to absence of carbon deposits that cause sensations of burning

Compatible Part Numbers