I have modified my starbucks grinder per the following website for a finer grind.
http://www.ineedcoffee.com/07/hack-starbucks-grinder/
However, since I went to a non-pressurized portafilter I needed an even finer grind. Since making a second adjustment, I have found that the grinder makes a kind of high-pitched, warbling noise on the finest settings. It appears to grind nicely, but I fear I may be damaging the burrs. or grinding metal into my coffee.
Has anyone had similar experience with this somewhat extreme modfication of the Starbucks grinder?
Considering a replacement, does anyone have an alternative to the Baratza Virtuoso in the $200 price range?
Thanks,
Ken



