Potassium sorbate is produced by neutralizing sorbic acid with potassium hydroxide. It is one of the most widely used food preservatives globally, valued for its high water solubility, broad antimicrobial spectrum, and mild flavor impact. Potassium sorbate is most effective at pH levels below 6.5, where it releases sorbic acid that inhibits the metabolic activity of molds, yeasts, and certain bacteria.
The ingredient is widely used across the beverage, dairy, bakery, and confectionery industries. It is frequently combined with sodium benzoate to provide synergistic preservation in acidic products. Potassium sorbate is considered one of the safest synthetic preservatives available and is approved for food use by regulatory agencies worldwide, including the U.S. FDA and EFSA.