Factors affecting panel performance

Panellists not performing as normal can sometimes be ehminated. For example, wine jndge agreement, lehability, discrimination and stability varies 

Orientation of the panellist towards the tasks by trial tasting prior to taste difference testing can improve performance in triangle tests (O Mahony et al. 

Whatever the requirements and questions, those in charge of a panel need to make certain that panel members are thoroughly conversant and practised with the definitions, descriptions and scales to be used before the assessments proper start. Those in charge must also be aware, as far as possible, of those factors affecting individuals and groups, and which may influence direction and magnitude of scores. 

Colour and appearance are powerful indicators of object quality. This applies particularly to food. Human beings have different sensitivities to flavour and it is relatively easy to confuse tasters by giving them inappropriately coloured foods (Moir 1936). The existence of the halo effect results in some foods having to be tailored for a particular market. For example, the French prefer their rose wines to 

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