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IMS Competition Big Bang Basket - 20/22gr

by IMS

The Big Bang basket is the latest innovation from IMS; fewer and smaller holes that get closer together as you get closer to the center. The distance between the holes starts at 1.5mm at the center and increases towards the outside. This unique pattern reduces side channeling by forcing more flow through the center resulting in a balanced coffee with softened acidity and a clean body. Electropolished for a smooth and easy to clean finish with strong chemical resistance.

Suitable for standard portafilters accepting a 58/58.4mm tamper base.


  • Border  Ø70mm (B70)
  • Capacity: 2 cup (2T)
  • Shape: Flat bottom (FH)
  • Height  25.5 mm (H25.5)
  • Body: Ø60 mm for Ø58/58.4mm tamper
  • Capacity 20/22g
  • Perforated area: 49mm
  • 585 round holes with conical section and 0.30mm diameter in Big Band pattern (BB)
  • IMS B702TFH25.5BB


B702TFH21.5BB 21.5 mm 14/16 gr 15/17 gr 16/18 gr
B702TFH23.5BB 23.5 mm 17/19 gr 18/20 gr 19/21 gr
B702TFH25.5BB 25.5 mm 20/22,5 gr 21/23 gr 21,5/24 gr
B702TFH27.5BB 27.5 mm 22/24.5 gr 23/25 gr 24.5/26 gr

Disclaimer: All tests about the capacity of the filters were made using:
• Dark roasted coffee: 80% Arabica 20% Robusta blend
• Medium roasted coffee: 100% Arabica Brasil
• Light roasted coffee: Ethiopia single origin


Will fit most:

Ascaso, Astoria, Bezzera, BFC, Bianchi, Brasilia, Casadio, Conti, E61 Groups, ECM, Elektra, Expobar, Faemo, Fiorenzato, Fracino, Futurmat, Grimac, Iberital, Kees van der Westen, Magister, Marzocco, Nuova Era, Orchestrale, Pavoni, Promac, Quality Espresso, Rancilio, Rocket, Royale, Sab Italia, San Remo, Scala, Simonelli, Slayer, SV Italia, Synesso, VFA Expres, Vibiemme, Victoria Arduino, Wega


Availability: Translation missing: en.general.icons.icon_check_circle icon Only 7 left!

Customer Reviews

Based on 1 review
Joël Desroches (Trois-Rivières, QC)
Bing Bang basket

I prefer it to IMS baristapro nanotech for flavor in my setup!