Posted Sun Nov 6, 2011, 6:04pm Subject: Stone in Rocky ...
While grinding some espresso this morning, I heard the sound I had hoped never to hear ... clunk, clunk, clunk. Indeed, shaking out my grinder yielded a very small stone in the beans. I opened the Rocky (doserless), cleaned it, vacuumed out the grinds (and hopefully stones) and tested. My zero point remains unchanged by it does not want to seem to grind until I turn the hopper to about a "10" setting (zero point = between 1 and 2). There are some grounds at lower settings; typically the chute clogs and nothing comes out, however. I can see no visible damage to the blades.
Posted Mon Nov 7, 2011, 5:27pm Subject: Re: Stone in Rocky ...
No. Just some very apparent jolts when the burrs caught the stone. Interestingly enough, although the zeo point remains the same, I now need a grind setting of 4.5 to pull a good shot (vs. 1.5 previously). The grounds look decently consistent in size and I don't have any squirting from the naked PF when I pull a shot. I don't understand it.
NobbyR Senior Member Joined: 10 Jul 2011 Posts: 1,604 Location: Germany Expertise: I love coffee
Espresso: Poccino Opus One, Ariete Grinder: Eureka Mignon Istantaneo,... Vac Pot: N/A Drip: Melitta Linea Unica de Luxe Roaster: N/A
Posted Tue Nov 8, 2011, 1:01am Subject: Re: Stone in Rocky ...
The whole thing doesn't seem logical. It would appear more understandable to me, if you had to grind finer instead of coarser, in case the stone had damaged the burrs. I could also understand, if you had to recalibrate the Rocky. However, you say the zero point remained unchanged.
But I think your grinder is basically alright.
*** "This drink of the Satan is so delicious that it would be a shame to leave it to the infidels." (Pope Clement VIII on coffee)
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