Espresso Filter Basket (Precision Perforated) is used for holding and evenly extracting the coffee puck in an espresso portafilter through a precision-perforated, uniform hole field. FDA 21 CFR is the reference cited for it on drawings, datasheets and purchase orders.
What FDA 21 CFR Means for Espresso Filter Basket (Precision Perforated)
The dimensions in the table below are supplied to suit FDA 21 CFR. Where the standard sets requirements for the finished appliance, device or system, compliance testing of that assembly stays with its manufacturer; we supply the metal mesh part to the drawing and can provide material certificates and dimensional reports with the shipment.
Espresso Filter Basket (Precision Perforated) Dimensions
| Size | Basket diameter (mm) | Depth (mm) | Dose (g) | Hole diameter (mm) | Hole count | Thickness (mm) |
|---|---|---|---|---|---|---|
| 51 mm single | 51 | 18 | 7u20139 | 0.30 | 420 | 0.5 |
| 51 mm double | 51 | 22 | 14u201316 | 0.30 | 480 | 0.5 |
| 54 mm double | 54 | 23 | 16u201319 | 0.30 | 560 | 0.6 |
| 58 mm single | 58 | 19 | 7u201310 | 0.30 | 610 | 0.6 |
| 58 mm double | 58 | 25 | 18u201320 | 0.30 | 700 | 0.6 |
| 58 mm triple | 58 | 29 | 20u201322 | 0.28 | 760 | 0.6 |
| 58 mm pressurized | 58 | 24 | 14u201318 | 0.80 (single) | 1 | 0.6 |
Specifying Espresso Filter Basket (Precision Perforated) Beyond the Standard
- Diameter & depth: Match the portafilter: 51, 54 or 58 mm, and a depth that suits the dose so the screen does not imprint the puck.
- Hole size & count: Precision baskets hold 0.28–0.30 mm holes within a few microns over the whole floor; pressurized baskets use one exit hole.
- Spring groove: Specify the retaining-spring groove position for the portafilter brand or the basket will fall out when knocking.
When Espresso Filter Basket (Precision Perforated) Is Not the Right Choice
Not for drip, moka or French press brewing; the dose, depth and hole field are tuned to 9-bar espresso pressure.
