Vine Graft is located San Francisco. Please contact us at or visit our website at

KAREN HANNAH received her wine credentials through the Court of Masters Sommelier (Level I), the International Sommelier Guild (Levels I & II), and the North American Sommelier Association where she received her Italian Wine Specialist certification. She has been working in the urban winery industry for several years and is working her first harvest in 2016 to learn about winemaking & produce a barrel of Aglianico for her own label. A former poetry and ESL instructor and also a letterpress printer, Karen is passionate about assisting others to voice their interests and talents with comfort and confidence.


DAVID FRAZIER began the journey to follow his passion for serving others after many years of working in sales and operations in the energy and hi-tech distribution industries.┬áDavid started with a small pop-up food business called “Roux the Day” before entering the wine industry. There he has been able to borrow from experiences in the past to help build a unique and vibrant urban wine business in San Francisco.