How does a winemaker decide when grapes in the vineyard are ready to pick? Is it an art? A science? Both? Ross Andrew Mickel, Winemaker at Ross Andrew Winery, takes time from his busy harvest schedule to shed light on what goes into making this crucial decision. Ross also discusses the diversity of grapes and vineyards from a host of regions across Washington State, and their contribution to his wines. Also touched on: porch pounders, Ziploc bags, and making wine in Oregon.