Hi Snobs,
I have been playing with my new Sylvia and DL rocky for a week now and it didnt take long to find a grind setting that worked well with my dosing and tamping.
The setting seems a bit coarser than most of what Ive read (12-16 depending on the beans... Zero point on my Rocky - burrs touching lightly - is surprisingly 0). Anyway, the ground coffee comes out into the portafilter as clumps, rather than loose. The clumps are the size of small peas. Ive read about this being due to grinding too fine but any coarser results in shots that progress way too fast. Im tamping with ~15 kg of force.
I dose by filling the basket roughly level, tapping on the bench to settle the grinds, then overfilling, leveling with my finger and then tamp. One thing I find is that clumps of coffee tend to roll off the PF and get wasted...
I wonder if the clumping might affect the distribution of coffee in the basket and lead to more channeling in the flow?
Can excess residue in the chute perhaps slow down the coffee so it starts to clump?
Any thoughts?
I have been playing with my new Sylvia and DL rocky for a week now and it didnt take long to find a grind setting that worked well with my dosing and tamping.
The setting seems a bit coarser than most of what Ive read (12-16 depending on the beans... Zero point on my Rocky - burrs touching lightly - is surprisingly 0). Anyway, the ground coffee comes out into the portafilter as clumps, rather than loose. The clumps are the size of small peas. Ive read about this being due to grinding too fine but any coarser results in shots that progress way too fast. Im tamping with ~15 kg of force.
I dose by filling the basket roughly level, tapping on the bench to settle the grinds, then overfilling, leveling with my finger and then tamp. One thing I find is that clumps of coffee tend to roll off the PF and get wasted...
I wonder if the clumping might affect the distribution of coffee in the basket and lead to more channeling in the flow?
Can excess residue in the chute perhaps slow down the coffee so it starts to clump?
Any thoughts?

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