Open source is about more than a directory listing though, and I think that was the point of the original comment. Knowing what source files are in the repo doesn't really help consumers (and kudos if you can expand this and take customer patches as well!).

If you want to be open source (at least w.r.t. beer recipes) if you detailed the recipes and process so that, for example, someone could take the recipe tweak it a little, add a filtering step, and produce a gluten-free version of the recipe. If they could then contribute that back to you with testing, you're ahead of the game when you decide you want to try for that market. Something like that is the first point at which I'd be ok with the term open source being applied to this endeavor.

In any case, I'm going to be watching out for your beers, I hope to see one on the shelves or at a local bar (DC area) soon!