Cuong Pham uncorks a split of Napa Valley Cabernet Sauvignon he bought at auction and pours a glass for his son, Kevin. They toast, swirl, and sip, assessing the glycerin levels, the color, the aroma. Cuong’s wife, Ann, and daughters Tracy and Tiffany join in the tasting and nod in approval. The family knows a thing or two about barrel-aged artisanal products: They own and run Red Boat Fish Sauce, the world’s premiere manufacturer of the essential Vietnamese condiment.
It’s a clear day here on Napa Valley’s Silverado Trail, and Cuong and the Pham family have gathered on the patio to celebrate any number of occasions worth toasting: It’s the tenth anniversary of the launch of Red Boat, Cuong and his wife, Ann, just purchased this sprawling brick traditional on…