Potassium nitrate (E252) – what is it?
Potassium nitrate, also designated as E252, is the potassium salt of nitric acid. It takes the form of a white crystalline powder or granular crystals. It is commonly used as a food additive for its preservative properties.
It is a chemical whose main purpose in the food industry is to extend the shelf life of food products by inhibiting the growth of anaerobic bacteria, including Clostridium botulinum, which can cause food poisoning.
Properties of potassium nitrate (E252)
Potassium nitrate is a powerful preservative that can prevent the growth of bacteria, mold and yeast in food. It has an antimicrobial effect, especially under anaerobic conditions, which makes it effective in preserving food products.
Uses of potassium nitrate (E252)
Potassium nitrate is widely used in the food industry for preserving meat, fish, cured meats, and meat and fish products such as pates and smoked cheeses. It is also used for wine preservation because it can inhibit the growth of unwanted microorganisms.
Where to buy potassium nitrate (E252)?
Potassium nitrate (E252) is available in grocery stores, industrial food wholesalers and online food stores. It is often available as powder or crystals in packaging that provides adequate protection from moisture and contamination.
Potassium nitrate (E252) and its functions in foods
Potassium nitrate (E252) plays a key role in maintaining food freshness and safety by inhibiting the growth of harmful microorganisms. Its addition helps extend the shelf life of food products, which is important for both producers and consumers, ensuring the freshness and safety of the products consumed.
