Blind tasting of wine involves tasting and evaluating wines without any knowledge of their identities. This is done because knowing the identity of a wine easily prejudices tasters for or against it because of its geographic origin, price, reputation, or other considerations.
Scientific research has long demonstrated the power of suggestion in perception as well as the strong effects of expectancies. For example, people expect more expensive wine to have more desirable characteristics than less expensive wine. When given wine that they are falsely told is expensive they virtually always report it as tasting better than the very same wine when they are told that it is inexpensive. However, blind tastings have demonstrated that price is not highly correlated with the evaluations made by most people who taste wine.
Similarly, people have expectancies about wine because of its geographic origin, producer, vintage, and many other factors. The world of wine has numerous myths and exaggerations that are only now being disproven scientifically, yet they influence perceptions and expectancies. Not even professional tasters are immune to the strong effects of expectancies. Therefore, the need for blind tasting continues.
French wines were generally believed by most people to be the very best wines in the world until 1976. ... During the 1980s, Coca-Cola and Pepsi Cola began an escalating campaign of mutually-targeted television advertisements which became known as the Cola Wars. ...
The Double blind method is an important part of the scientific method, used to prevent research outcomes from being 'influenced' by the placebo effect or observer bias.
Blinded research is an important tool in many fields of research, from medicine, to psychology and the social sciences, to forensics.
This is basically a single-blind test of the witness' memory, and may be subject to subtle or overt influence by the officer.
Blindtasting of wine involves tasting and evaluating wines without any knowledge of their identities.
When given wine that they are falsely told is expensive they virtually always report it as tasting better than the very same wine when they are told that it is inexpensive.
Tasters described the supposed grand cru as "woody, complex, and round" and the supposed cheap wine as "short, light, and faulty." Blindtastings have repeatedly demonstrated that price is not highly correlated with the evaluations made by most people who taste wine.
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