Five & 20's Rye Whiskey Finished in Port Casks might take four years to be bottled, but it's how quickly it gets into the casks that makes the difference. After 18 months in newly charred American Oak barrels, the rye whiskey is transferred to port casks from the Five & 20 family winery that were emptied less than 24 hours prior. The quick turnaround time and long aging period matures the port-finished Rye Whiskey with rich flavors of dark fruit and chocolate.