Most products are produced to satisfy consumer needs. For quality control, they are tested for their performance. Sometimes, their properties, e.g. viscosity and pH, are measured using various instruments. But, unfortunately, the perceived characteristics cannot be measured by any instrument, and sensory analysis has to be resorted to, instead. Products such as food, household chemicals, cosmetic and personal care products, and fabric care products have often to be evaluated by the five senses of sight, smell, taste, touch and sound.

Main Research: Yusrabbil Amiyati Yusof