E202 – Potassium Sorbate
PreservativeDescription
Potassium sorbate is the potassium salt of sorbic acid. It's a white, crystalline powder, or colorless solution. It functions as a preservative by inhibiting the growth of molds, yeasts, and some bacteria in foods.
Notes
Potassium sorbate is the potassium salt of sorbic acid, a naturally occurring compound originally discovered in the berries of the mountain ash tree. Today, it's produced commercially through a chemical process that combines potassium hydroxide with sorbic acid. Think of it as taking a natural preservative compound and pairing it with potassium to make it more stable and effective in food applications. This additive works as a preservative, specifically targeting molds, yeasts, and certain bacteria that can spoil food or make it unsafe to eat. You'll commonly find potassium sorbate in foods like cheese, wine, dried fruits, baked goods, and processed meats. It's particularly popular because it works well in slightly acidic foods and doesn't affect taste or appearance when used in proper amounts. Potassium sorbate is considered safe by food safety authorities worldwide and is suitable for vegetarians and vegans. It's also generally acceptable under most religious dietary laws. While the compound occurs naturally, the version used in food processing is typically synthetic, but this doesn't affect its safety or function. Some people with severe potassium restrictions may need to be aware of foods containing this additive, though the amounts used are generally very small.