[Homeroast] Turning Bottomless Portafilter

raymanowen at gmail.com raymanowen at gmail.com
Wed Aug 25 00:52:39 CDT 2010

One more thing-

Take a good look at the 4-jaw chuck on the lathe. It weighs more than 75
pounds, and all it does is hold the little brass porta-filter casting. The
piece being machined is tiny compared to the 1-ton (+) machine , to permit
precise machining operations. The pf (workpiece) could be the last one in
existence, as far as the machinist is concerned.

The 5-pound toys from Grinders-R-us are the worst evil that could be
inflicted on coffee. The grounds look like Mars surface rubble and we wonder
about flavor and stalling.

Cheers, Mabuhay -RayO, aka Opa!

Got Grinder?

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