yeah sure i can be unbiased about it, the duo is the best grinder i think has ever been produced, the burrs inside are pretty much end game, they give the best psd of any grinder ever made, its also the perfect size and weight for my counter, the black they use is so black too, its just amazing .
joking aside, i think all grinders have their merits and there’s no one grinder to rule them all,
the duo vs the major there are a few key differences, notably the burr and the rpm.
in the cup espresso major vs duo is subtle, blind you wouldn’t know, side by side i picked the duo most times as a more balanced cup, on taste alone for espresso is it worth the upgrade? if you want to yes, will it be night and day no,
the filter side of things you will see a bigger difference due to the burr change, this for me was very noticeable,
the biggest thing major vs duo is the work flow is massive on the duo, no rdt, just dose and into the pf, you get a bit of pop-corning on the duo, which visually is a bit pants, but its had no affect in cup.
