Physical requirements for food appearance assessment

Computer terminals are installed in many individual booth areas. The ASTM recommended booth bench size of 30 inches (76cm) wide, and 15 inches deep, may not be sufficient to house the terminal as well as the sample. The terminal may also introduce distracting colour and contrast into the booth via the fiitish and screen colours. Any contrast introduced may be particularly intmsive during translucency assessments, or colour assessments of translucent samples. Therefore, the colour of the terminal and its orgaitisation into the booth should be considered with care. Translucency becomes evident either when 

Where assessments take place on a production line, good consistent conditions for viewing the sample or matching to a memorised or formal colour standard need to be made available. Market researchers often find themselves in conditions unsuitable for the making of reliable appearance assessments. A specification of the environment of the test, including types of illumination and colour of the test surrounds, should be noted in the final report. This will make it easier for the occurrence of colour metamerism problems to be minimised. If the consumer s views of product colour and appearance are important to the project, standard lighting and viewing conditions should be provided. 

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