VISION > EVALUATE WINE APPEARANCE
HOW VISION WORKS
Retina with photoreceptors: cones and rods
Cones - bright light - color
Rods - dim light - no color
Human eye perceives light = wavelengths
Each visible wavelength has own color
Different materials reflect different wavelengths or colors
Reds reflect red or purple; whites reflect yellow or green
WINE'S VISUAL FEATURES
Evaluation Features and Questions
||How clear is the wine?
||What color is the wine? And the meniscus?
||How dark or light is the color?
||Are there any bubbles? What are they like?
||Are the legs thick and persistent? Or thin?
CLARITY: How clear/reflective is the wine?