Potassium sorbate is a food-grade preservative commonly used to inhibit mold and yeast growth, helping to extend the shelf life of moist food products. In these fruit pastilles, a very small amount is included to help maintain product stability, given that the primary ingredients are fruit purees which are susceptible to spoilage.
Its use allows the product to be made without what the manufacturer describes as "preservatives in the usual sense of a heavily processed candy profile." It is widely used in many food items like dried fruit, cheese, and baked goods. If you have specific sensitivities or dietary restrictions regarding preservatives, you may wish to review the full ingredient list. The product is not intended to diagnose, treat, or prevent any disease.