I'm sorry to say that I know very little about burrs, but I like to ponder about them. By looks, I can't distinguish the grinds. Anyone care to guess which one is the 60 year old hand grinder being forced to grind finer than it's designed to do and which one is a $2000 mechanical masterpiece which is supposedly amongst the finest available?peacecup wrote:JimS always gets angry when I say this, but for all the fanfare for taste differences among grinders, there are very few objective tests that I've seen. In fact Jim's blind test results are the only ones I've seen.
Roeland, since you seem to know a lot about burrs, and have lots of experience with old hand grinders and Titan class conicals - are there easily observable differences in the grind quality between these two extremes? I.e., can you easily see that the small burrs produce more (or less) fines or uneven grinds? Maybe a comparison between these extremes would shed some light on the more subtle differences between two Titan class grinders.
I actually dialed in the PeDe back from drip by just looking at the grinds. First shot was right on the money flow-wise. Can't say that it was any good, but then again, it didn't taste good from the MC either since the beans are a few days past a few days past their prime.
In any case, when I upgraded to the Faema MC, I found that dialing was less finicky and quicker. Also, my amount of sink shots decreased. But then again, I got better at making espresso by experience. It's hard to make a definitive judgment without resorting to rigorous testing. And that is no fun when you've got testing to do all by yourself. Everybody I know just fears my coffee bar.