I know this is a long shot, but I figure if anyone can answer this question, it's my fellow hounders.
I'm doing a special even at work and we're going to be serving root beer floats. I was wondering if any knew of a brewery in the Austin area or the Hill country that also brews their own root beer.
How much do you need? You can find Maine Root Root Beer (made in Austin) in bottles pretty easily. http://maineroot.com/sodas/root-beer/
I'm pretty sure Specs carries, or could get, kegs of St Arnold (Houston) and Abita (Louisiana) Root Beers as well, if you wanted more.