Zinfandel is a black-skinned grape whose origins tie back to Croatia. DNA testing has confirmed that Croatian grapes Crljenak Kaštelanski and Tribidrag are genetically equivalent, and equal to the Primitivo variety from Apulia, Italy. Records indicate that the grape was introduced to Italy in the 18th century, and to the United States in the mid-19th century.

Carol Shelton was born and raised in Rochester, New York, and then moved to San Mateo, California. She went to the University of California Davis (UC Davis,) studying poetry, though having an undeclared major until the fateful day, in her freshman year, when she took a tour of Sebastiani Winery.

Kosher wines are regular wines, produced in observance of, and in compliance with, Jewish religious dietary laws (Kashrut). The religious laws outline a standard for food preparation as well as winemaking.

Puglia is a region in Southern Italy with the Adriatic Sea on its east border, the Ionian Sea on its southeast border and finally the Strait of Otranto and Gulf of Taranto to the south border.