The Old Style brand is owned by Pabst now, which is now a holding company that contracts out its beer making instead of running its own breweries. So it’s brewed at whichever brewery has the capacity to do so. I presume that Old Style’s sweet spot is still probably the Midwest market around Chicago, they probably produce it in the Midwest. La Crosse Lager is brewed in the old G. Heileman Brewery (now operating as City Brewing, LLC) in La Crosse and makes use of the kraeusening process. If kraeusening is that unusual of a process in modern beer production, maybe that’s still where Old Style is made…
You’re right, my mistake.
A question, if I may:
IS SOMEBODY GOING TO EXPLAIN WHAT THE HELL KRAEUSENING IS?
Thanks in advance… 
That’ll be 2 bitcoins, please.