The best way is to pull it down and do a proper clean...Originally Posted by 467269656E646C795F526F6C6C696E73000 link=1235629071/0#0 date=1235629071
Yes... Some say you can use other products... However that is really the lazy and has more cons than pros, if you want my honest opinion.
Lots on cleaning and looking after the Rancilio and other grinders... In addition the odd mod or two is worth while.