JoeFrex - 53 mm Tamper CONVEX

JoeFrex - 53 mm Tamper CONVEX

All "CONVEX" bases have a slightly convex surface for pressing espresso.

Why convex?

Normally, the surface of the coffee powder pressed into the portafilter does not play a significant role; whether it is flat or concave, there is enough space between the coffee surface and the dispensing group so that the water dispensed from it can be distributed uniformly over the coffee powder and pass through it uniformly. However, if a flat filter is used in the arm, or if much more than 7g (for a single cup filter) or 14g (for a double cup filter) is used, the space between the coffee powder and the dispensing group may be too reduced for optimal water distribution. For this purpose, the Convex Tamper Base can be used, as it leaves a cavity in the middle of the pressed powder, for better water distribution.

The size of the tamper base required varies depending on the manufacturer. Below is a list of manufacturers and their required sizes for tamper bases:

- Delonghi BAR: 51mm
- Dalla Corte: 54mm
- ECM: 58mm
- Elektra Micro Casa S1: 49mm
- Elektra: 58mm
- Faema: 58mm
- Fiorenzato: 58mm
- Francis! Francis! X1: 56mm
- Gaggia: 58mm
- Grimac: 58mm
- IIsomac: 58mm
- IZZO Lever: 53mm
- IZZO: 58mm
- Krups: 48/49mm
- La Cimbali: 58mm
- La Marzocco: 58mm
- La Pavoni Club Combo / Duetto: 58mm
- La Pavoni Europiccola: 48/49mm
- La Pavoni Manual Lever for Domestic Use (starting from 1999): 51mm
- La Pavoni Manual Lever for Domestic Use (until 1999): 48/49mm
- La Pavoni Lusso: 53mm
- La Pavoni Millennium: 51mm
- La Pavoni Professional: 51mm
- La Pavoni Pub: 58mm
- La Scala Tamper: 58mm
- La Spaziale: 53mm
- Nuova Simonelli: 58mm
- Quickmill: 58mm
- Rancilio: 58mm
- Reneka: 57mm
- Saeco: 53mm or 51mm
- San Marco: 54.4mm or 53mm
- Vibiemme: 58mm
- Wega: 58mm