In the closing years of the last century during my introduction to wine, I recall attending a wine "component tasting" seminar. Instead of wine, i was given like a dozen-or-so test tubes each filled with concentrated non-alcoholic liquids that represented the bare element of a certain wine trait. The contents of one test tube represented what structure tanin provided, for example.
Do "they" still do these types of tastings? I recall some wine rep put this particular seminar together at the request of the wine bar's request.