What is the purpose of using controls in sensory testing?

Using controls in sensory testing serves as a benchmark for comparison, which is essential for evaluating the sensory attributes of the products being tested. Controls provide a standard reference point, allowing assessors to determine how a new or experimental sample measures up against known characteristics of a baseline product. This helps in identifying differences and similarities in taste, smell, texture, and other sensory attributes.

For instance, if a new flavor is being tested, using a control that represents the standard flavor allows panelists to accurately assess the intensity and quality of the new flavor based on their perceptions compared to the familiar benchmark. This ensures that the results of the sensory test are meaningful and can guide product development effectively.

By establishing a clear point of reference, controls also help in reducing variability and increasing the reliability of the sensory data collected. This is critical for making informed decisions in product formulation and quality control.