bluesman wrote:I think it goes CW because the slope up to each of the 3 vanes seems longer and more gradual on the leading side if turned that way. The more gradual slope seems to me to be more likely to let the ground particles flow and spread out, rather than pressing them into the puck irregularly. And for righties (which is most of us), CW seems to be the more natural way to turn it.
I'm about to make my second cap of the morning, so I'll try it CCW.
[EDIT] As expected (which rules out any scientific merit to this little experiment...), I find no difference in the cup with CCW rotation of the tool on the puck. It does leave a bit of loose ground coffee on the surface. CW rotation leaves a perfectly smooth top. It did feel a bit awkward or unnatural to rotate it counterclockwise, though.
Thanks for sharing this insight on what appeared to be a stupid question....but as they say there is no ??? question:-).