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WINEMAKING TECHNICAL SPOTLIGHT 74 WINES&VINES May 2016 where you have the most issues with heating is the interface with the floor," he said. "If the tank gets too hot, the jackets turn on." While all the tanks are equipped with rack screens to make pumpovers easier, Sullivan's preferred method for cap management is punch- downs because they are quicker to perform and foster better extraction. "You can crank out mul- tiple punchdowns in 20 minutes. You're done with just one pumpover in 20 minutes," he said. "From a labor-savings perspective I like it, and we do batch trials every few years, and we tend to like punchdowns more than pumpovers." Sullivan said while pumpovers do provide for a gentle extraction that helps create "ele- gant" texture, the color isn't the same, and the wines "miss a bit of grip." Situated along the tank catwalk and at sev- eral spots throughout the winery are hot and cold water stations with compressed air and nitrogen from the winery's Parker nitrogen generator. The winery also has a bank of quick connections for glycol to accommodate small- lot fermentations in 2-ton portable tanks by Idiaz Services that can be dumped directly into the basket press. Sullivan said the small lots are typically experimental ferments, certain vineyard blocks or single fermentations of one of the vineyard's 10 heritage Pinot clones. The clones are providing Sullivan with some Without Avian Control we would clearly need to net our vineyard. Avian Control allows us to get our grapes to full ripeness. Providing us the flexibility to leaf pull and hedge right up to the very end. —Jack Tomasello, Tomasello Winery, Inc. Proven Effective. Endorsed by Thousands of Growers. Invest in your grapes... not expensive netting! Liquid Bird Repellent Call Today For More Information 888-707-4355 Sales@AvianControl.com www.AvianControl.com Drive Birds Away from Barns, Packing Sheds and other structures. Now Approved in California For Vineyards, Wine and Table Grapes Winemaker Mike Sullivan demonstrates how easy it is to move one of the winery's two pneumatic punch- down devices set on rails above the fermentation tanks. Wines & Vines Digital Edition View this issue on your tablet, smartphone or online at winesandvines.com/digitaledition Subscribe online at winesandvines.com/subscribe winesandvines.com