James Martin spent two years converting the ground flour of the old flour mill into a tasting room and production facility for Copa Di Vino wines. The milling machinery was left in place. James Martin hopes to enhance the reputation of single-serving wine containers with his upscale product called Copa Di Vino. It’s a sealed plastic drinking cup that looks like glass and contains good-quality Washington State wine—not the jug wine normally found in single-serving containers. Each Copa Di Vino cup contains 6.3 ounces (the equivalent of a quarter of a bottle of wine) and is designed for younger wine […]