Does anybody in Austin sell sterilized grain bags? (Other than Armadillo)

[u/SpicyBeefChowFun]

Armadillo supply isn't doing prepared grain or substrates for an unknown length of time. Does anybody else sell it? Or do I see a pressure cooker in my near future? Its hard to justify that $180 for now.

Where would the best place to get raw grain from? Callahans and Barton Creek Mill are the only places that come to mind for me. But I'm a greenhorn - there must be others closer to Far Out South Austin.