For anyone that has not heard of this local brewery (based in McKinney), or maybe have tried a beer or two of theirs but do not know much about them, definitely check into their tours (Saturdays at 11am).
Franconia Brewing: Want to Take a Tour?
It is $5, which gets you about a 20-30 minute tour of the facility by Dennis Wehrmann (owner/brewmaster) and samples of his brews both during and after the tour.