extremely simple - brewing stand that accept items and place then into mugs, time can be implemented via TE timer or much more better by null effect item that increase age of booze.
this will allow to craft booze step by step without stupid randomness and extremely intuitive, since you able to get result of your actions right after you did somethig.
everything else shoud stay same, including water hops to wheat ration and soo on, just make this system simple and intuitive.