Potassium sorbate is widely used as a preservative in the food industry to prevent the growth of mold, yeast, and fungi. It is commonly added to products like cheese, wine, yogurt, dried meats, and baked goods to extend shelf life and maintain freshness. In personal care products, it acts as a preservative in items such as lotions, shampoos, and cosmetics to prevent microbial contamination. Additionally, it is used in pharmaceuticals to ensure the stability and safety of certain medications. Its effectiveness in low concentrations makes it a popular choice for preserving a wide range of products while maintaining their quality.