Topic of Discussion:High Speed Optical Sorting in the

Field

Winemaking

Viticulture

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

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

Winemaking

Viticulture

Bi-Product Details

• Rachis Weight– Range: 4 to 12%~– Average: 6%~

• Optical Sorting Bi-Product– Range: 0.5-11%~– Average: 2.5%~

Artificial intelligence

Image analyzed by

artificial intelligence

Raw image of the color

scanner

SORTED MATERIAL EXPERIMENT(POST DE-STEMMER)

Sorted Fruit Stream

Optically Sorted Fruit94.6 % Berries (mostly whole)

3.5% Raisins 0.4% MOG 1.5% Juice

MOG

Raisins Whole Berries

Broken Berries & SkinsRejected Stream

19.7%

31.8%33.6%

11.1%

51.5%

Control

Sorted

Rejected

Pictures of must in fermenter during cold soak (2nd punch down).

Volume of Sorted vs. Rejected Fruit.

1.5% “loss” of “good fruit”

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….

Winemaking

Viticulture

Vineyard Operations Impact; Reality Check

No labor costs in the field to drop the fruit.

Changing thinning attitudes in vineyard.

HY10 Optical Sorter Trial @ RMW 10/28/10 Comparison of Sorted and Rejected Fruit

0

200

400

600

800

1000

Gra

ms

of

Re

co

ve

red

Ma

teri

al P

er

Kilo

gra

m o

f S

am

ple

(S

ort

ed n

=20

/ Rej

ecte

d n

=10)

Grape Material (g) Raisins (g) MOG (g)

MOG (g) 3.65 336.04

Raisins (g) 35.42 111.62

Grape Material (g) 946.68 515.40

Sorted Stream Rejected Stream

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 $)

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

Twitter: @WalshVineyardsFacebook: facebook.com/WalshVineyardsYouTube: Walsh Vineyards Management ChannelWeb: www.walshvineyards.com

Thank You