Citric Acid is a natural preservative. It is used in cooking jams and preserves. Diluted with water and 1/4 to 1/2 citric acid is a substitute for Lemon Juice. Ingredients: Citric Acid Allergen: Packed on shared equipment with wheat, tree nuts, soy and sesame. Kosher: RCC Packed in USA PET Bottle With Shaker Top