Potassium sorbate is the potassium salt of sorbic acid, a naturally occurring compound found in some fruits. It is primarily used to inhibit the growth of mold, yeast, and some bacteria, making it invaluable in preventing spoilage in perishable goods. Its effectiveness stems from its ability to interfere with the cellular metabolism of microorganisms, ultimately leading to their death or preventing their proliferation. This property makes potassium sorbate an ideal choice for preserving various products, including baked goods, dairy items, beverages, and even cosmetics.