After a cool growing season, harvest 2025 was sprinkled with unwelcome weather events, making even ripening merely a dream for many winemakers. As fermentation wraps up, the young wines may still express raw or green tannin character, needing time to mellow and come into harmony. Post-fermentation aging and finishing tannins are an essential tool for taming those unruly characters to achieve balance, structure, and true aromatic expression. These post-fermentation tannins refine green or unripe fruit characteristics, improve mouthfeel, and smooth rough edges, to bring the wine back into harmony.

Red Wines: From Green to Graceful

If the winery has the cooperage space and time, extended aging is used to refine rough young red wines. Alternatively, aging tannins address gaps in structure or smooth the perception of green fruit, particularly in this cooler vintage. Carefully selected tannins can build mid-palate weight, stabilize color, and add complexity for a wine that will age gracefully.

ATPGroup offers a broad range of maturation and finishing tannins designed to meet specific stylistic goals:

• The Tani-X range, led by Tani-Heritage, is designed to enhance red fruit and stabilize structure.
• To increase aromatic complexity and body, start with Querca-Tan Rouge from the Querca-Tan line.

White Wines: Freshness and Stability

Tannin additions are not just for red wines; whites and rosés can also benefit from the increased aromatic complexity and fuller mouthfeel that they provide, as well as from inherent antioxidant protection. Low doses of Tani-Grape orQuerca-Tan Blanc help preserve fresh aromatics and overall elegance, especially in wines with shorter aging.

Customized Support for Every Winery

ATPGroup offers a full range of tannins, and our team of experienced winemakers and enologists can help you design a program that fits your winemaking style, budget, and goals. Whether your focus is on rounding green fruit, improving structure, or enhancing freshness, our specialists can help identify the right products and dosages for your specific needs.

For more information or trial samples, contact your ATPGroup Technical Representative or Enology Products Specialist, or visit www.ATPGroup.com.

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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.