geurtesten

Geurtesten, or odor tests, are evaluations of olfactory perception performed by human subjects to measure detection, discrimination, identification, intensity, and hedonic appraisal of odors. They are used in sensory analysis and olfactometry to quantify odor-related sensations in environmental, product, and clinical contexts.

Geurtesten employ a range of methods. Threshold tests seek the minimum concentration at which an odor is detectable (detection threshold) or identifiable (recognition threshold). Discrimination tests determine whether two samples differ in odor, using formats such as triangle tests or paired comparisons. Intensity and hedonic tests rate how strong an odor is perceived and how pleasant or unpleasant it is. In professional settings, dynamic olfactometry with standardized odor delivery systems is used to present precise concentrations; standardized protocols include EN 13725 for ambient air odors, while food and fragrance work often uses trained sensory panels and aroma profiling.

Applications: In environmental and industrial contexts, geurtesten assess odor emissions and compliance with regulatory odor limits. In product development, they support quality control and formulation by characterizing aroma profiles. In medicine, smell tests help diagnose olfactory disorders, track recovery, and study neurological conditions. Data from geurtesten are typically interpreted with reference to panel performance, detection thresholds, and sensory descriptors.

Considerations: Tests require controlled environments, careful panel recruitment and training, and defined scoring scales. Results can be influenced by adaptation, cultural factors, and prior exposure, so standardization and replication are essential.