While this story may be apocryphal, it is nonetheless illustrative: During the height of the single malt whisky craze in Japan, Suntory Ltd decided to rebuild brick by brick the Bowmore distillery from Islay, Scotland in Japan, in an attempt to capture the distinctive taste. They copied the procedure exactly, used the same equipment, the same recipe, everything--and yet the desired flavour eluded them. Of course, their whisky was perfectly fine too, but when it comes to God's greatest creations (that is, Beer & Whisky) mimicry just can't get the job done.
I also remember a This American Life episode about hot dogs, where an old hot dog factory finaly upgraded its building, but for some reason, after they did, despite using the same equipment and ingredients, the hot dogs were a weird colour and had some odd off-flavour. Try as they might, they couldn't fix the problem--until they realized that in the old factory, which was convoluted and jury-rigged during a hundred years of off-and-on expansion, they had an employee who carried the finished sausages from the casing machine to the smoke-house. And, because of all the corridors and doorways, the trip took about 35 minutes--an ageing process they hadn't accounted for in the new building, and which they had to simulate to regain the old, traditional flavour!
So, recipes, which can't be copyrighted by law, btw, are really just a fraction of the whole brewing/distilling/sausage-making process!