Once a taster passes a screening, can they be used for future panels?

The statement that tasters must be rescreened after passing an initial screening holds true in the context of sensory evaluation. This requirement is important because sensory characteristics can change over time due to various factors, such as fluctuations in health, taste preferences, or external influences. Regular rescreening ensures that panelists maintain their ability to accurately and consistently assess products. It is so crucial for the integrity of sensory analysis that the same group of tasters may exhibit different sensory capabilities as time goes by. Therefore, periodic screening helps to confirm that tasters are still reliable and fit for evaluating products in future panels.