Sparkling wine is one of the most expressive and technically demanding wine styles. Its character begins with the grape variety, the vineyard, and the production method, but the final sensory signature depends heavily on yeast. Yeast acts as the invisible winemaker, shaping aroma, flavor, texture, and bubble structure throughout both primary and secondary fermentations.

Different strains of Saccharomyces cerevisiae behave very differently under the challenging conditions of sparkling wine production. Low pH, increasing alcohol, and high pressure create an environment where only the right strains thrive. Equally important, each strain varies in its ability to create and release the flavor compounds that drive complexity and define style. When secondary fermentation takes place in the bottle and is followed by proper riddling, the yeast has an even greater influence on the final profile.

To help winemakers better understand the impact of yeast selection, ATPGroup conducted a focused trial using three different yeast strains. We evaluated how each strain affected fermentation performance, aromatic development, palate structure, and overall sparkling wine quality.

We invite you to taste the results for yourself at our complimentary WIN Expo 2025 Trial Tasting, where you will have the chance to discuss the findings with our technical team and guest winemaker.

Trial Tasting Details
Date: Thursday, December 4, 2025
Time: 2:00 to 3:00 PM
Location: WIN EXPO at the Sonoma County Fairgrounds - Hall of Flowers (Booth 614)

Details: https://atpgroup.com/atpgroup-win-expo-2025-trial-tasting/

No RSVP is required. Just stop by and join the tasting.

Presenters:
James Roblee, ATPGroup Technical Support Representative
Jim began his wine career in the Finger Lakes after graduating from Cornell University. He followed his passion for wine to California, where he held winemaking positions with some of Napa’s biggest and most luxurious brands for over 14 years. Now with ATPGroup, he assists fellow winemakers to find innovative and customized solutions to process obstacles. 

Kyle Altomare, Winemaker at Gloria Ferrer
Kyle leads the winemaking team at Gloria Ferrer with a philosophy rooted in his Italian upbringing. The son of a chef, Kyle was raised to “pursue flavor”—to break it down, understand its nuances, and seek balance. This foundational lesson continues to shape his approach to sparkling wine, a category he describes as “crafted, not prescribed—there’s no recipe, only a series of choices. The real work happens in the bottle, not the cellar.” Kyle’s approach is intuitive and human. He listens to the wine and follows the path it wants to take.

Special Registration Offer from ATPGroup
If you have not yet registered for WIN EXPO 2025, we invite you to attend as a guest of ATPGroup. Use promo code ATP245 for a complimentary pass to the trade show floor or $30 off conference sessions. Register here: https://www.wineindustryexpo.com

ATPGroup will also be exhibiting in booth 245 and ready to talk enology products, cellar supplies, filtration, tasting room drinkware, cleaning and sanitation solutions, and everything else you need for your winery operations

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ATPGroup was founded as a family business in 1991. Now a leading supplier to the wine, beer, food, and pharmaceutical markets, we strive to provide solutions and create value for our customers in each of the industries we serve. The company offers an unparalleled range of high-quality products and services including winemaking & cellar products, brewery supplies, glassware, cleaning & sanitation solutions, tartaric acid, cream of tartar, and Rochelle salt. Its team is made up of industry veterans, cellar masters, and product specialists who provide technical expertise in their respective fields. With warehouses across the country, the company is strategically located to serve customers throughout the U.S., Canada, and Mexico.