IMS Big Bang 2-cup filter basket 20/22.5 grams D.58 

IMS Big Bang 2-Cup Espresso Filter Basket (20/22.5g) — 58mm Ridgeless

Achieve sweeter, more balanced espresso with the IMS Big Bang 2-Cup Filter Basket in 20/22.5g capacity — the precision-engineered Italian upgrade for home baristas and café professionals who want cleaner extractions and zero compromise on flavor. This shorter-profile basket is the ideal choice for baristas dialing in the 20–22g dose range, offering a perfectly matched headspace for puck stability and consistent shot-to-shot results.

The Science Behind the Big Bang

The Big Bang basket features fewer and smaller holes that get closer together near the center. The distance between holes starts at 1.5mm at the center and increases as you move outward toward the edge. This ingenious geometry forces water to flow through the densest part of your puck first — reducing side channeling and resulting in a balanced espresso with softened acidity. The effect is immediately noticeable: more sweetness, more clarity, and a fuller mouthfeel in every cup.

Key Features

• 20–22.5g dose capacity — the perfect volume for classic modern doubles and precision single-origin extractions
• 585-hole Big Bang perforation pattern — 585 holes (0.3mm diameter) in a Big Bang profile, with incremental distances between holes from 1.5mm increasing from the center to the edge, across a perforated area of 49mm
• Ridgeless cylindrical design — flat bottom for clean puck release; works with naked and spouted portafilters alike
• Electropolished stainless steel — easy-to-clean finish with strong chemical resistance
• Precision fit — 25.5mm height, 70mm outer border (B70), fits 58/58.4mm tampers
• 100% Made in Italy by IMS

Specifications at a Glance

Universal 58mm Machine Compatibility

This basket fits most E61 group head portafilters, making it compatible with leading prosumer and commercial espresso machines including La Marzocco, Rocket Espresso, Rancilio, Gaggia, ECM, Sanremo, and Slayer. Installation is tool-free — simply swap out your existing basket and start pulling better shots immediately.

Is This the Right Basket for You?

The 20/22.5g variant is the sweet spot for baristas who prefer a slightly lighter dose with optimal headspace between the puck and shower screen. It’s especially well-suited for medium roasts, high-extraction ratios, and machines where puck-to-screen clearance matters. If you’re currently dosing in the 18–22g range and struggling with channeling, bitter notes, or inconsistent pulls, this is the upgrade that helps make an immediate, tangible difference.