(...) some wines would be presented to the panel three times, poured from the same bottle each time. The results would be compiled and analysed to see whether wine testing really is scientific. The first experiment took place in 2005. The last was in Sacramento earlier this month. Hodgson's findings have stunned the wine industry. Over the years he has shown again and again that even trained, professional palates are terrible at judging wine. "The results are disturbing," says Hodgson from the Fieldbrook Winery in Humboldt County, described by its owner as a rural paradise. "Only about 10% of judges are consistent and those judges who were consistent one year were ordinary the next year.
https://www.cambridge.org/core/journals/journal-of-wine-econ...
https://www.cambridge.org/core/journals/journal-of-wine-econ...
https://www.cambridge.org/core/journals/journal-of-wine-econ...
Heck, they can't even distinguish wine with artificial coloring from actual red wine:
No, they are asked to detect price.