The colors of wine
Authors Fairchild MD
Received 8 January 2018
Accepted for publication 1 February 2018
Published 23 March 2018 Volume 2018:10 Pages 13—31
Checked for plagiarism Yes
Review by Single-blind
Peer reviewers approved by Dr Fengmei Zhu
Peer reviewer comments 3
Editor who approved publication: Dr Roger Pinder
Mark D Fairchild
Program of Color Science/Munsell Color Science Laboratory, Rochester Institute of Technology, Rochester, NY, USA
Purpose: This work examined the color measurement and color appearance of wine under various illumination types in order to assess the importance of illumination in the sensory evaluation of wine.
Materials and methods: Six finished retail wines were measured in 8 different spectrophotometric and spectroradiometric geometries, both in analytical cuvettes and International Organization for Standardization tasting glasses. The resulting spectral transmittance data were analyzed colorimetrically using 2 color spaces (Commission Internationale de l’Eclairage L*a*b* and Commission Internationale de l’Eclairage Color Appearance Model 02) to examine the effects of both measurement geometry and viewing condition on the appearance of wines.
Results: The results clearly indicate that measurement geometry is critical in wine color assessment and that the lighting used to view wines, as well as the lighting levels, can have significant impact on the perceived colors of wines and ultimately the judgments made in sensory evaluation procedures.
Conclusion: Standardization of lighting type, level, spectral characteristics, and geometry are needed for careful and consistent sensory evaluation of wine color. Recommendations are made for a relatively simple way to achieve this.
Keywords: colorimetry, illumination, appearance, sensory evaluation
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