1876 Port Barrel Finish Bourbon 1876 Port Barrel FinishBourbon is distilled, barreled and bottled in Texas using 80% yellow #2 Texas corn and 20% Secale Cereale Oklahoma winter rye. This blend is triple distilled and aged in new, white American oak then refined to 85 proof with Hill Country Artesian Spring Water. The bourbon is then aged in Port Wine barrels.