ATPGroup has unveiled two breakthrough enzymes, Zyme-O-Thiols and Zyme-O-Ultra Cold, designed to help winemakers push the boundaries of aroma and efficiency in the cellar.

Zyme-O-Thiols: Unlocking Hidden Aromas
For years, winemakers have known that many of a grape’s most exciting aromas are “locked away” in precursor form. During fermentation, these precursors can be transformed into thiols, the compounds responsible for bold tropical fruit notes in wines like Sauvignon Blanc.

What sets Zyme-O-Thiols apart is its ability to specifically release the precursors to thiols such as mango, grapefruit, and passionfruit—aromatic compounds that other enzymes simply don’t access. The result is white wines with greater aromatic lift and intensity, and even reds, like Syrah, with new layers of fruit complexity. By targeting these unique flavor pathways, Zyme-O-Thiols gives winemakers a level of creative control over aromatics that standard enzyme preparations can’t deliver.

Zyme-O-Ultra Cold: Rethinking Clarification
Clarification at low temperatures has always been a balancing act. While cooler conditions help preserve delicate aromas, they also slow or even stop most enzymatic activity. Traditionally, this meant winemakers had to choose between efficiency and quality.

Zyme-O-Ultra Cold eliminates that compromise. Specially developed to remain fully active at temperatures as low as 50°F, it delivers rapid, efficient clarification by flotation or cold settling without sacrificing aroma or color. Unlike standard enzyme blends that require warmer conditions to perform, Zyme-O-Ultra Cold is engineered for the way modern cellars actually work. The result is faster processing, cleaner juice, and greater protection of wine character, all at cellar-friendly temperatures.

Innovation That Creates Value
“These enzymes represent a new generation of winemaking tools,” said Terry Dewane, head of ATPGroup’s Enology Division. “Zyme-O-Thiols helps winemakers capture aromas that would otherwise be lost, while Zyme-O-Ultra Cold makes cold settling and flotation more efficient than ever. Both are designed to solve real cellar challenges in innovative ways.”

Both products are available now, exclusively through ATPGroup. For more information on these or any of ATPGroup’s full range of winemaking solutions, contact your ATPGroup Enology Products Specialist, call 707-889-6844, or visit 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.