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 tria

Rack & Riddle Presents: Mastering the Art of Méthode Champenoise & Charmat Sparkling Wines WIN Expo Exhibit Hall Trial Tasting  Thursday, November 30 12:45 – 1:45 p.m. Sonoma County Fairgrounds Grace Pavilion 1350 Bennett Valley Rd., Santa Rosa, CA 95404 Join Rack & Riddle for a tasting journey, where you will be sampling sparkling wines produced in two distinct methods: Méthode Champenoise & Charmat. We will explore how each is expertly crafted by our award-winning winemaking team. Each sparkling wine will be finished 2-3 different ways; a neutral (no dose), a sugar dose, and a wine or spirit dose. Taste for yourself how the two winemaking methods produce diverse sparkling wines, and how each dose uniquely compliments and accentuates the final profile of the wines. Register with the Promo Code for your FREE Trial Tasting: RAC23