Fireworks Popcorn Wisconsin White Birch, 15 oz. jar yields 12 full servings (five cups!) of popcorn. This tender, crisp and crunchy white popcorn is a best seller and sure to become a favorite. Grown by small farmers in the Midwest to our exacting standards, Fireworks Popcorn are the same varieties our Grandparents remember eating as children. All Natural varieties that were common around the Turn of the Century Fireworks Popcorn contains no GMO's and is the all American snack of yesteryear.