Virtual Sensory Session: Managing yeast nutrition

Rick Tagg, Michael Heny, and Dr. Amanda Stewart

March 2021

Winemakers from around Virginia gathered (virtually) to learn about managing yeast nutrition from special guest Amanda Stewart, Associate Professor of Food Science and Technology at Virginia Tech and to taste results of two experiments. In the first, Rick Tagg (Delaplane Cellars) tested the effects of the specialized nutrient Stimula Chardonnay compared to Fermaid O. In the second, Michael Heny (Michael Shaps Wineworks) explored the omission of DAP in Tannat fermentation.

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Use of specialized nutrient (Stimula Chardonnay) to increase aromatic expression in barrel fermented Chardonnay (2020)

Rick Tagg

Delaplane Cellars

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Exploring nutrient strategies in red wine fermentations – creating a nutrient desert (2020)

Michael Heny

Michael Shaps Wineworks

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The effect of Stimula Sauv Blanc (Scottlabs) fermentation nutrients on Thiol Production in Sauvignon Blanc (2018)

Rachel Stinson Vrooman

Stinson Vineyards

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