I don’t know how old this article is, but I found it very informative and insightful as to how one can quantify what certain ingredients taste like.
You can read the article here: http://www.brewgeeks.com/try-ingredients-before-brewday.html
As a relatively new brewer, whenever I design my own recipes, or tweak others’ recipes, I always wonder about exactly what each individual ingredient adds to the final product.
In any case, I thought that I would share it here in case anyone else might find it interesting.