Those who are birch beer soda purists, Reading Soda Works White Birch is just the ticket. All aboard the Reading Soda Works railroad for a nostalgic trip down memory lane with carefully crafted specialty sodas that use all natural ingredients. Old Fashioned White Birch Soda is crafted with slow carbonation and has a distinctly wintergreen flavour derived from the white birch sap. Gluten-free, caffeine-free retro soda. 🥤 Ingredients Per official nutritional listing, the ingredients include: Triple filtered carbonated water Pure cane sugar Natural and/or artificial flavors Citric acid (acidulant) Sodium benzoate (preservative) Natural and/or artificial color Alternative listings also mention: Gum acacia (stabilizer) Caramel color (in some versions) Yucca extract (clarifier)