Try a pack of this top-rated diet birch beer!! Served throughout the Philadelphia region!! Caffeine free. Genuine draft. Original recipe. Old fashioned taste. Old fashioned goodness. Made from an old Pennsylvania Dutch recipe. An American classic since 1936, Pennsylvania Dutch Diet Birch Beer is one of the oldest soft drinks in the country. We're proud to use only the highest quality ingredients to create the famous unique taste of Pennsylvania Dutch Birch Beer. Birch beer is believed to have originated in the famous Dutch Country where they still make it and enjoy it today. You'll love the unique taste of Pennsylvania Dutch Diet Birch Beer, whether the great taste takes you back to your childhood, or is making a memorable first impression, nothing is more refreshing than enjoying this soda classic.