Okanagan Barrel Works Ltd. of Oliver, B.C., has tossed their barrel-maker’s gauntlet to a number of internationally renowned cooperages:  Seguin Moreau (Napa), Demptos (Napa), Radoux (Santa Rosa) A&K Cooperage (Missouri), Canadian Oak Cooperage (Ontario) and Carriage House Cooperage (Ontario) to determine how each cooper’s barrels will impact on a given wine. All have accepted the…