It's actually false. Ish. Well, sort of. There was a famous study that asked its test subjects to describe the wine that they were drinking. There are certain

It's actually false. Ish. Well, sort of. There was a famous study that asked its test subjects to describe the wine that they were drinking. There are certain words that are typically associated with red wines and certain words that are typically associated with white wines. They used red dyes to dye white wine red and a different chemical to turn the red wine the color of white wine. The administrators of the study found that the words used to describe the white wines died red aligned more closely with the descriptors used to describe red wines, and the words used to describe the red wines bleached white were more closely aligned with the descriptors used to describe white wines. Conclusion: wine experts can't tell the different between white wine and red wine. The problem: The "experts" were 18-22 year old college students who had just taken a class on wine tasting. They weren't actually experts, they were just people who had been taught the right words to say to pass the tests. They were taught what words to say. Then you tested to see whether they said them. There was another famous study where its test subjects were given a sampling of wines, with each wine having a short blurb about it, which included the price of the wine. The prices were fake. They were then asked to rate each wine. The administrators found that the fake price stated on the blurb was correlated with the rating. Conclusion: wine experts can't tell the different between expensive wine and cheap wine. The problem: the only thing you've actually proven is confirmation bias. Those two studies are quoted a lot. You'll quite often see those two particular quotes, wine experts can't tell the difference between red and white wine, and wine experts can't tell the difference between expensive and cheap wine. You don't see studies that show that wine experts can't tell the difference between merlot and cab franc, or the difference between stainless steel and oak aging on a chardonnay. You don't see those studies because those studies don't exist.