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June 2014
Case Study: Optical Sorting's Effect on Wine
How optical sorting affected juice chemistry, juice microbiology, fermentation kinetics, wine chemistry, IBMP levels and wine phenolics on 2013 Walla Walla Valley Cabernet Sauvignon
by Timothy Donahue and Sabrina Lueck
The first thing we hear is the vibrational hum. A beat drops as a preset algorithm warms up the air jets of our optical sorter. Womp-womp-womp. The machine’s music is infectious—even our most crush-weary winery workers start to move. The mechanical music builds to a crescendo, and our crush pad now bears a strong resemblance to a mid-90’s rave sans the dilated pupils and glow sticks. The music dies out, and the sorter is ready for action. The switches are flipped, the destemmer...
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