St. Amant Winery specializes in Zinfandel as well as warm weather grapes that are indigenous to the Mediterranean Coast. St Amant owns their own estate vineyard and also sources fruit from Amador County in the Sierra Foothills.
Established in 1981, the winery is located in the Lodi AVA. In 1979, owner Tim Spencer took the revolutionary step of grafting 2 acres of Zinfandel vines to 5 native grapes of Portugal's Douro Valley. These varietals included Touriga, Tinta Cao, Souzao, Alvarelhao, and Bastardo. Spencer has since planted Tempranillo and Barbera as well.