The same drink scores differently depending on whether the taster knows what it is. This is not a failure of honesty; expectation alters perception directly, which is why serious assessment conceals the bottle.
Expectation feeds into perception itself
The brain combines sensory input with prior belief, and a strong expectation shifts what is actually experienced rather than only what is reported.
A taster told a wine is expensive is not lying when they describe it as more complex. The description reflects what they perceived.
This makes self-awareness an insufficient defence, since knowing about the effect does not switch it off.
Price is the strongest single cue
Price signals quality in most categories, and drinkers apply that assumption before the glass reaches their lips.
Presenting the same liquid twice under two different stated prices reliably produces a better verdict for the sample believed to be expensive, and experience offers little protection against it.
Label design and producer reputation work the same way at a smaller scale, which is why competition samples are decanted into plain glassware rather than shown in the bottle.
Removing the price from view removes the largest and most predictable distortion in the whole process.
Order and context distort separately
A drink tasted after something intense reads as weaker, and one tasted after something delicate reads as bolder.
Panels randomise order between tasters or rotate flights so that no sample consistently occupies the same position.
Temperature, glass shape, lighting and time of day all contribute smaller effects that are controlled the same way, by holding them constant across every sample.
Blind tasting introduces its own bias
Without context, tasters tend to reward drinks that stand out immediately, which favours intensity over subtlety.
A restrained wine designed to accompany food can score poorly in a line-up while performing better than the winner at a table.
This is why blind results and long-term reputation diverge, and why some producers regard competition scoring as measuring the wrong thing.
What a blind score is actually good for
It measures how a drink performs against its peers under identical conditions, stripped of price and name.
That is a genuine and useful measurement, and it is not the same as how much anyone will enjoy the bottle at home.
Reviews that state their conditions, including whether tasting was blind and what the drink was tasted against, are the ones a reader can actually calibrate against their own experience.