IMS Precision Filter Basket – 18/22g (Triple) Ridgeless

Description

When it comes to getting really optimal espresso extractions, filter baskets are a small accessory that is often overlooked by amateurs but has become an increasing focus for professional and even competitive baristas. The reality is that the shape of both the basket and its holes can have a significant impact on extraction and flavour. Getting great filter baskets is a small investment that can make a huge difference.
In the world of espresso filter baskets, IMS is one of the most reputable brands. They have been engineering top quality espresso accessories since 1946! These filter baskets, available in two sizes are among the best you can find for any espresso machine using a standard 58mm E61 grouphead.
I.M.S. perforation is exclusive and patented
Double basket specifications
The shape was created by I.M.S. to obtain the proper ratio between the base and height of the coffee puck in relation to capacity. The filter is cylindrical with a specific corner rounding at the base. This shape has been designed to exploit the whole coffee puck, which also facilitates drying and expulsion.

Capacity: 12-18g
Border: Ø 70 mm (B70)
Height: 24.5 mm (H24.5)
Body: Ø 60 mm for Ø 58 mm tamper
Ridge: external Ø 60,5 mm
Shape: Cylindrical with specific corner rounding
Perforated area: Ø 44 mm
Number of holes: 641 Micro spacing (M)
Hold diameter: 0.30 mm
Shape of the hole: CIRCULAR with CONICAL cross section
Competition perforation: Relaminated and Recalibrated
Tumbling: Wet vibrofinishing with ceramic inserts and drying with corncob
Pickling: Passivation and preparing of the material
Electropolishing: smooth surface with unmatched sanitary and non-contaminating qualities is obtained

Triple basket specifications
The shape was created by I.M.S. to obtain the proper ratio between the base and height of the coffee puck in relation to capacity. The filter is cylindrical with a convex bottom to collect the coffee towards the center during percolation. This shape has been designed to exploit the whole coffee puck, which also facilitates drying and expulsion.

Capacity: 18-22g
Border: Ø 70 mm (B70)
Height: 28.5 mm (H28.5)
Body: Ø 60 mm for Ø 58 mm tamper
Ridge: ridgeless
Shape: Cylindrical with Convex Bottom
PERFORATED AREA: Ø 49 mm
Number of holes: 715 Hexagonal spacing (E)
Hold diameter: 0.30 mm
Shape of the hole: CIRCULAR with CONICAL cross section
Competition perforation: Relaminated and Recalibrated
Tumbling: Wet vibrofinishing with ceramic inserts and drying with corncob
Tumbling: Wet vibrofinishing with ceramic inserts and drying with corncob
Pickling: Passivation and preparing of the material
Electropolishing: smooth surface with unmatched sanitary and non-contaminating qualities is obtained

IMS Precision Filter Basket Compatibility
All E61 58mm group heads including

Astoria
Expobar
La Marzocco
Rancilio
Rocket
Rancilio
San Remo
Wega