Does a wine really taste better when you know what it costs?

There is a peculiar moment in blind tasting when the bottle is revealed.

A wine that, thirty seconds earlier, was simply something in a glass suddenly acquires a name. Then a place. A producer. Perhaps a famous vintage. And, often, a price.

Nothing in the glass has changed. The acidity is the same. The alcohol is the same. Whatever happened in the vineyard and cellar happened long before you arrived.

And yet the experience can change almost instantly.

A wine you thought rather ordinary becomes interesting. Something you liked becomes impressive. Or the reverse: an anonymous glass you were happily drinking becomes faintly disappointing when you discover it cost far less than expected.

This sounds suspiciously like wine snobbery. The science suggests something more complicated.

The price in your head

In one of the best-known experiments on wine and expectation, researchers led by Hilke Plassmann gave people wines while showing them different prices. Some of the wines were secretly repeated: the liquid was the same, but the supposed price was not.

Participants reported greater pleasure when they believed a wine was more expensive. Brain imaging also showed differences in areas involved in valuation and experienced pleasantness.

This is often retold as: your brain makes expensive wine taste better.

That is catchy. It is also too crude.

The experiment did not show that price changed the chemistry of the wine, or that anyone's taste receptors suddenly began receiving different information. It showed that information surrounding a sensory experience can change the pleasure people report. Those changes were also associated with brain systems involved in valuation.

A later experiment made the point even more interesting.

Participants tasted wines that all actually retailed for €12, while being told on different occasions that they cost €3, €6 or €18. Again, stated price influenced pleasantness.

But when the researchers compared those ratings with a later blind tasting, the clearest effect was not that €18 transformed the wine into something magnificent. It was that the €3 cue appeared to make it less pleasant.

In other words, the better headline may sometimes be:

Knowing a wine is cheap can make it harder to enjoy.

Expectation can work downwards as well as upwards.

Wine arrives with a story attached

Price is particularly easy to test because researchers can change a number on a screen while leaving the liquid untouched. But it is hardly the only piece of information wine carries.

In a French experiment, 57 oenology students were given the same wine under two different presentations: once as an ordinary table wine and once under the identity of a grand cru classé.

Fifty-two rated the prestigious presentation more highly.

More revealingly, the language changed. Presented modestly, the wine attracted more fault-seeking descriptions. Given a grander identity, positive qualities became easier to find.

That does not prove that trained tasters cannot tell wines apart. It shows that even people who know quite a lot about wine do not encounter it as disembodied liquid.

A label creates an expectation. So does a famous appellation. So does a critic's score. So does being told that the person pouring your glass spent £100 on it.

Other experiments have found the same broad pattern. Ratings, reputation and country-of-origin cues can shift how people evaluate a wine.

The story outside the glass can alter the judgement made about what is inside it.

Even the famous experiments have acquired myths

There is an irony here: some of the research showing how expectation shapes wine perception has itself become distorted by expectation.

You may have heard the story that wine experts were once served white wine dyed red and were unable to tell that it was not red wine.

That is not what the famous experiment showed.

Researchers coloured a white wine red with an odourless dye and asked tasters to describe its aroma. They began using descriptors more readily associated with red wine.

That is fascinating enough. Colour had influenced how the aromas were categorised and described.

It is not evidence that wine experts cannot tell white wine from red.

The distinction matters because wine perception contains several different abilities that are constantly collapsed into the word taste.

Being able to detect a difference is not the same as preferring one wine. Preferring one is not the same as believing it is higher quality. Describing a wine differently is not the same as failing to recognise what it is. Saying you would pay more for something is another question again.

Wine research becomes much less sensational, and much more useful, once those things are kept separate.

This does not mean expensive wine is a scam

There is another seductive conclusion waiting here: if price can influence our judgement, perhaps expensive wine is simply an elaborate confidence trick.

The evidence does not support that either.

A large study covering more than 6,000 blind tastings found that, among ordinary consumers, increasing retail price did not translate into increasing average enjoyment. Another set of blind tastings involving wines costing between roughly $20 and $119 likewise found little evidence that the more expensive wines were consistently more enjoyable.

That tells us something important.

It does not tell us that inexpensive wine is objectively superior.

Other controlled research has found that consumers can, blind, prefer wines that an expert panel had independently judged to be of higher quality.

Both things can be true.

Wine has intrinsic differences. Grapes, site, yields, ripeness, oak, extraction, ageing, faults, balance and dozens of other decisions affect what ends up in the glass.

Price also reflects things that have little to do with immediate drinking pleasure: scarce land, manual work, ageing time, tiny production, reputation, demand, distribution and the simple economics of an established name.

A £60 wine may genuinely have cost far more to produce than a £12 wine. It may be rarer, longer-lived, more complex by professional standards or more difficult to make.

None of that guarantees that you will enjoy it five times as much.

Price contains information. It is not a conversion table from pounds spent to pleasure received.

Knowing more does not make you immune

Wine expertise is real. It is just not magical.

Studies comparing experts and novices have found advantages in recognising and remembering wine-related smells, even when basic olfactory sensitivity is similar. Training seems to change what people notice, recognise and remember more clearly than it simply gives them a more sensitive nose.

But learning the language and categories of wine also gives a person more expectations to bring to the glass.

Experienced tasters have still been influenced by colour. Oenology students have been influenced by prestige labels. Wine professionals have shown changes in evaluation when country of origin was revealed.

Training can make you better at particular wine tasks.

It does not turn perception into a context-free instrument.

That is not an indictment of expertise. If anything, it makes expertise more interesting. A good taster is not someone whose mind has somehow been removed from the process. It is someone who has trained that mind to pay attention in disciplined ways, while remaining human.

So what is blind tasting actually for?

This is where blind tasting becomes useful, without needing to become theatre.

Wine culture has sometimes turned it into a competitive performance: identify the grape, country, region, vintage and producer, ideally while everyone else watches.

There is a simpler reason to do it.

Blind tasting temporarily removes some information so you can ask a narrower question:

What do I think of this wine before I know what I am supposed to think of it?

That can reveal a lot.

It can show that the bottle you assumed you loved is not necessarily your favourite when its identity disappears. It can reveal that a less prestigious wine gives you more pleasure. Or it can confirm that the wine you spend more on really does have something you value even without the reputation attached.

None of this requires a tasting grid.

Have someone conceal two or three bottles. Do not try to identify them. Do not score them out of 100.

Ask instead:

Which one do I want another glass of?

That may tell you more about your own taste than successfully guessing an appellation ever will.

Then put the label back on

There is a danger in taking all of this too far.

A perfectly controlled blind tasting may be useful for judging liquid. It is not how most of us actually experience wine.

Wine is drunk at dinner. On holiday. With someone you love. In a restaurant you have been waiting months to visit. From a vineyard you once walked through. From a producer whose work you have followed for years.

A bottle can carry memory, anticipation and ceremony.

If knowing the story makes the wine more enjoyable, the pleasure is not fake simply because it would diminish in a laboratory.

The useful distinction is elsewhere.

Contextual pleasure is real pleasure. It is simply not the same thing as evidence about the liquid.

A prestigious label can make a wine more enjoyable without proving that it would outperform a cheaper bottle under controlled comparison. A vineyard story can make a glass more meaningful without changing its acidity. A £100 price tag can increase anticipation without establishing that the wine contains £100-worth of sensory superiority.

Once you separate those ideas, there is no need to choose between cynicism and romance.

Sometimes you want to know what is actually in the glass.

Take the label away.

The rest of the time, put it back on. Enjoy everything that comes with it.

Sources

1. Hilke Plassmann, John O'Doherty, Baba Shiv and Antonio Rangel, “Marketing Actions Can Modulate Neural Representations of Experienced Pleasantness”, Proceedings of the National Academy of Sciences, 2008: https://doi.org/10.1073/pnas.0706929105
2. Liane Schmidt et al., “How context alters value: The brain's valuation and affective regulation system link price cues to experienced taste pleasantness”, Scientific Reports, 2017: https://doi.org/10.1038/s41598-017-08080-0
3. Frédéric Brochet and Gil Morrot, “Influence of the context on the perception of wine: cognitive and methodological implications”, OENO One, 1999: https://doi.org/10.20870/oeno-one.1999.33.4.1017
4. Gil Morrot, Frédéric Brochet and Denis Dubourdieu, “The Color of Odors”, Brain and Language, 2001: https://doi.org/10.1006/brln.2001.2493
5. Robin Goldstein, Johan Almenberg, Anna Dreber, John W. Emerson, Alexis Herschkowitsch and Jacob Katz, “Do More Expensive Wines Taste Better? Evidence from a Large Sample of Blind Tastings”, Journal of Wine Economics, Volume 3, Issue 1, 2008, pp. 1–9: https://doi.org/10.1017/S1931436100000523
6. Robert H. Ashton, “Wine as an Experience Good: Price Versus Enjoyment in Blind Tastings of Expensive and Inexpensive Wines”, Journal of Wine Economics, Volume 9, Issue 2, 2014, pp. 171–182: https://doi.org/10.1017/jwe.2014.7
7. Wendy V. Parr, David Heatherbell and K. Geoffrey White, “Demystifying Wine Expertise: Olfactory Threshold, Perceptual Skill and Semantic Memory in Expert and Novice Wine Judges”, Chemical Senses, 2002: https://doi.org/10.1093/chemse/27.8.747