Beer is fairly well solved enough by now that, if you have a good nose and a brew calculator site, you can guess your way to 80% accuracy for any given beer at a first try, and by the time I’ve iterated much further than that, I’ve arrived at something more interesting anyway.
If you’re a company that sells beer, your business model is more based on people’s lack of interest in that creative work than it is around protecting any “secret recipe”.