Wine-tasting: It`s junk science

Experiments have shown that people can’t tell plonk from grand cru. Now one US winemaker claims that even experts can’t judge wine accurately. What’s the science behind the taste?

Every year Robert Hodgson selects the finest wines from his small California winery and puts them into competitions around the state.

And in most years, the results are surprisingly inconsistent: some whites rated as gold medallists in one contest do badly in another. Reds adored by some panels are dismissed by others. Over the decades Hodgson, a softly spoken retired oceanographer, became curious. Judging wines is by its nature subjective, but the awards appeared to be handed out at random.

So drawing on his background in statistics, Hodgson approached the organisers of the California State Fair wine competition, the oldest contest of its kind in North America, and proposed an experiment for their annual June tasting sessions.

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