7 августа, 2015 
Malyar Sensory analysis involves using human subjects as a measuring tool. This presents an immediate problem, as individuals are innately variable, not only as a result of their experiences or expectations, but also as a result of their sensitivity. Thus, each person could genuinely perceive the same product quite differently. It is therefore essential in every sensory test that all variables except that actually under test are as carefully controlled as possible to minimize this variability.
A purpose-built sensory panel suite enables testing to be carried out in an environment free of noise or movement, and in rooms that are painted a neutral colour and are fitted with individual booths for each panellist. When testing is carried out, all samples are presented unlabelled so that the panellists do not receive any cues concerning the nature of the product, and the sample appearance is identical; the only variable (as far as possible) is the smell.
Having controlled the environment and the sample, the only other major variable is the panellists themselves. To minimize panellist variability, all panellists are selected for their sensitivity to smell and their short-term odour memory. They undergo six months training to be able to recognize (and name) a range of odour standards, to score perceived intensity of odour and to use a range of standard sensory tests. These are all highly specialized skills which the average person in the street simply does not possess.
Odour can be described using a number of different dimensions, each of which can be measured using different sensory tests: threshold, intensity and quality.
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