The beverage has been named 'Yuengling Hershey’s Chocolate Porter.' It will be available across the U.S. in October. According to Yuengling, the porter will stick around until at least February 2020. The beer will be served in some of the over 20 U.S. states that Yuengling can be found in. Yuengling, which has been around for nearly 200 years, is America's oldest brewery. Both it and Hershey's are located about 50 miles from each other in the state of Pennsylvania. Yuengling VP of Operations Jen Yuengling, via 'USA Today' The beer has a sweet aroma and contains 4.7% alcohol. With its chocolatey-finish, the porter pairs best with desserts.