Craftabrew seems to be very secretive about many things.
I will tell you that we sell craftabrew kits in our store, and i have made all of their beers.
The idea behind them is kind if like the old Mr Beer, but using some grains.
They want to to follow their directions and use tgeir products, and trust that they come out right.
As I said, ive made all their beers, and I just followed their instructions...it works. The beers are pretty good quality, and simple to make.