1. Topic of Discussion: High Speed Optical Sorting in the Field Winemaking Viticulture

2. Winemaking Viticulture Some Key Optical Equipment Features Session Long Productivity Instantaneous Productivity Session Long “Bi-Product” Instantaneous “Bi-Product” Average Berry Size Measurement (mm) Min and Max Berry Size Color –Green Berries –Pink* Uniformity of Shape Pips

3. Winemaking Viticulture Sorting Productivity Hand Tons Per 8 Hours –Range: 15-33~ Tons –Average: 25~ Tons –Ave Tons/Hour: 3.1 T/A Selectiv Machine Tons Per 8 Hours –Range: 25-45~ Tons –Average: 35~ Tons –Ave Tons/Hour: 4.4 T/A

4. Winemaking Viticulture Bi-Product Details Rachis Weight –Range: 4 to 12%~ –Average: 6%~ Optical Sorting Bi-Product –Range: 0.5-11%~ –Average: 2.5%~

5. Artificial intelligence Image analyzed by artificial intelligence Raw image of the color scanner

6. SORTED MATERIAL EXPERIMENT (POST DE-STEMMER)

7. Sorted Fruit Stream Optically Sorted Fruit 94.6 % Berries (mostly whole) 3.5% Raisins 0.4% MOG 1.5% Juice

8. MOG RaisinsWhole Berries Broken Berries & Skins Rejected Stream 19.7% 31.8% 33.6% 11.1% 51.5%

9. Control Sorted Rejected Pictures of must in fermenter during cold soak (2 nd punch down).

10. Volume of Sorted vs. Rejected Fruit. 1.5% “loss” of “good fruit”

11. Winemaking Viticulture Vineyard Operations Impact; Reality Check Example: –8X5 Spaced Vineyard –2 Drop Clusters x 0.26 lbs = 0.52 lbs –0.3~ t/a x 4.5 acres = 1.4 tons “Dropped” –50% “good fruit” in cluster x 1.4 tons= 0.7 tons –1,400 lbs “good fruit” in reject stream –Lose 3.5 x’s more “good fruit” @ two clusters dropped per vine Out of site out of mind….

12. Winemaking Viticulture Vineyard Operations Impact; Reality Check No labor costs in the field to drop the fruit. Changing thinning attitudes in vineyard.

14. Summary Conclusions: Reduced capital investment for wineries (W $) Fewer winery crush days/hours/minutes (W $) Less money spent on labor thinning (G $) Less “good fruit” being dropped during thinning (G $) Increased hang time (W $) Mechanical harvested and sorted fruit is superior to SOP hand picked fruit* (G&W $)

16. Napa Wine/Vit Tech 1. Improve the quality of Napa Valley Wines 2. Provide some technical information to members 4. Aid members in solving technical winemaking and viticulture problems 5. Carry on enological and viticulture research

17. Twitter: @WalshVineyards Facebook: facebook.com/WalshVineyards YouTube: Walsh Vineyards Management Channel Web:www.walshvineyards.com Thank You