I judge wine for a living. Can someone be wrong about what tastes good?
I make small-batch wine in the Adelaide Hills and judge at regional shows, so this question pays my bills. Twice a year I sit at a table with three other judges and we give medals. Every year someone at the cellar door tells me taste is subjective and my medals are just my opinion with a ribbon on it.
Hume's essay ‘Of the Standard of Taste’ is pinned to my shed wall. I love it for the story he borrows from Don Quixote: two of Sancho's kinsmen are asked to judge a hogshead of wine. One says it is good but tastes faintly of iron; the other says good, but with a note of leather. Everyone laughs at them. When the barrel is emptied, there's an old key on a leather thong at the bottom.
That is my whole job in one anecdote. Delicacy of taste is real, it can be trained, and it can be checked against the world.
But I can feel the weak point. Detecting the leather is one thing. Saying that a wine is better because of how its flavours sit together is another. Two trained judges can agree on every component and still disagree on the verdict. Is that disagreement one of us being wrong, or is there a point where expertise runs out and preference takes over? Where would you draw that line, and is it the same line for food as for wine?