Jeff Cohn brings 20 years of wine making experience to Alta Colina. With a masters in agriculture chemistry from California State University, Fresno. Jeff acts as a consulting winemaker, providing Bob guidance and coaching to produce the best wine that can be extracted from Alta Colina's bold Rhône varietals. Jeff joined the Alta Colina team in 2011, focusing on the blending of the 2011 vintage.
Jeff began his winemaking career at Boordy Vineyards before moving to Rosenblum Cellars in 1996, crafting numerous wines including the 2003 Rockpile Road Zinfandel, which placed 3rd on Wine Spectator's Top 100 list that year. Jeff also launched his own label, JC Cellars, an eclectic winery with a passion for Rhône wines. Since 2005, JC Cellars has produced 37 wines scoring above 90 points.