Eat or Avoid
E252

Potassium Nitrate

Also known as: Saltpeter, Saltpetre, Nitrate of Potash

Preservatives

Safety rating

Use Sparingly

Eat Away!Generally SafeUse SparinglyAvoid
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Purpose and Function

Potassium Nitrate is a preservative and color fixative that prevents bacterial growth and preserves the pink color of cured meats like ham, salami, and corned beef.

Commonly found in

  • Cured meats (ham, salami, corned beef)

Key functions

  • Inhibits bacterial growth (converts to nitrite in meat)
  • Preserves pink color and flavor

Potential Risks and Side Effects

  1. 01Can convert to nitrites and react with proteins to form nitrosamines, known carcinogens, especially when cooked at high heat
  2. 02Regulatory limits are in place to minimize nitrosamine formation risk
  3. 03Excessive consumption of nitrate-cured meats has been linked to increased cancer risk

References

    Related Additives