I see that this is your first post... [welcome]
Do a search on FOG. I remember that there was a recent thread on this very subject.
As I recall, the consensus was that it would be too hard on the vacuum unit...having the motor run constantly for the period of time required for pressing....but I could be wrong.
I don't intend to use mine for anything other than for what it was designed. Too expensive a unit, and if it breaks, it has to go to Germany for repair.
Cheers,
Frank
BTW - How and where did you get YOURS? I bought mine while my wife was stationed in Germany.