B702TCH28.5E FILTER BASKET
IMS - Competition Convex
B70 2/3 Cups - H28.5 Convex Bottom
Cylindrical filter featuring a specialized convex bottom. This geometry is designed to collect coffee towards the center during percolation, exploiting the whole coffee puck for a richer extraction and easier drying/expulsion. Best combined with bottomless portafilter holders.
- Border: Ø 70 mm
- Body: Ø 60 mm
- Height: 28.5 mm
- Tamper: Ø 58/58.4 mm
- Ridge: Ridgeless
- Pattern: 715 Holes
Capacities Comparison
| Code | Height | Dark Roasted | Medium Roasted | Light Roasted |
|---|---|---|---|---|
| B702TCH20E | 20 mm | 10/12 gr | 11/13 gr | 14/17 gr |
| B702TCH22E | 22 mm | 12/14 gr | 13/15 gr | 16/19 gr |
| B702TCH24E | 24 mm | 14/16 gr | 15/17 gr | 18/21 gr |
| B702TCH26E | 26 mm | 17/19 gr | 18.5/21 gr | 20.5/23 gr |
| B702TCH28.5E | 28.5 mm | 19/22 gr | 22/25 gr | 23/27 gr |
Technical Perforation
- Perforated Area: Ø 49 mm area.
- Number of Holes: 715 (Hexagonal pattern).
- Hole Diameter: 0.30 mm.
- Standard: Competition relaminated and recalibrated holes.
Finishing & Quality
- Electropolishing: High-grade sanitary surface.
- Finishing: Wet vibrofinishing with ceramic inserts.
- Passivation: Complete pickling and passivation treatment.
*Testing Disclaimer: All tests about the capacity of the filters were made using:
- Dark: 80% Arabica 20% Robusta blend
- Medium: 100% Arabica Brasile
- Light: Ethiopia single origin
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