Another longtime Sonoma County wine business is winding down amid a wave of winery closures across California. Passaggio Wines, a small producer based in Glen Ellen, plans to close its tasting room by the end of October 2026, ending a nearly 20-year run.
Owner and winemaker Cindy Cosco announced the decision on October 6 and held a farewell gathering on October 9. The company stopped producing new wine in 2025, so the upcoming closure concerns its remaining tasting-room operation and the winding down of the wine label, not a newly announced halt to production.
A Sonoma wine business with roots in 2007
Cosco launched Passaggio Wines in 2007 with just 50 cases of unoaked Chardonnay. Over the years, she expanded into small-batch reds, whites and rosés, with a particular interest in unusual grape varieties and European-inspired styles. Her first tasting room opened in 2014, and the business later settled in Glen Ellen’s historic Jack London Village at 14301 Arnold Drive…