Calcium Sorbate E203 – High-Purity Food Grade Preservative Supplier
E Number: E203 | Molecular Formula: C₁₂H₁₄CaO₄ | Appearance: Fine white crystalline powder
Calcium Sorbate (E203) is the calcium salt of sorbic acid. It is an effective antimicrobial preservative that inhibits the growth of molds, yeasts, and certain bacteria, helping food manufacturers extend shelf life while maintaining product quality and safety.
We supply consistent, high-purity food-grade Calcium Sorbate suitable for industrial use in approved markets.
Key Benefits for Food Manufacturers
- Effective inhibition of mold and yeast growth
- Helps extend shelf life of a wide range of products
- Low impact on taste and aroma when used at recommended levels
- Good heat stability
- Provides an additional source of calcium
- Compatible with many food systems (especially slightly acidic products)


Typical Applications
| Industry | Common Uses |
|---|---|
| Bakery & Confectionery | Bread, cakes, pastries, fillings, toppings |
| Dairy | Cheese (surface treatment), processed cheese, yogurt |
| Beverages | Fruit juices, soft drinks, concentrates |
| Sauces & Dressings | Mayonnaise, salad dressings, sauces |
| Fruits & Preserves | Jams, jellies, dried fruits, candied products |
| Other | Margarine, frozen foods, snack foods |
Product Specifications
| Parameter | Specification |
|---|---|
| Appearance | Fine white crystalline powder |
| Assay | 98.0 – 101.0% (on dried basis) |
| Loss on Drying | ≤ 1.0 – 3.0% |
| Lead (Pb) | ≤ 2 mg/kg |
| Arsenic (As) | ≤ 3 mg/kg |
| Heavy Metals | Within food-grade limits |
| Acidity (as sorbic acid) | ≤ 1.0% |
| Solubility | Slightly soluble in water |
Specifications are indicative and may vary according to production, grade and batch. Final specifications and CoA will be confirmed and provided prior to each order.
Regulatory Status
United States: Generally Recognized as Safe (GRAS) when used in accordance with good manufacturing practices.
Other markets: Approved in various countries outside the European Union (including certain markets in Asia, Oceania, and others).
European Union: Calcium Sorbate (E203) is no longer authorized as a food additive (removed from the Union list in 2018 due to insufficient genotoxicity data).
Frequently Asked Questions
Yes, in markets where it remains approved. It is no longer permitted in the EU.
Standard packaging is 25 kg cartons or fiber drums. We also provide flexible options for larger volumes according to your requirements.
Calcium Sorbate has been used as a preservative where control of molds and yeasts is required. Its suitability depends on the specific food formulation, destination market and applicable regulations.
Calcium Sorbate belongs to the sorbate family, which is primarily associated with mold and yeast inhibition. Actual preservative performance depends on factors such as formulation, pH, water activity, processing conditions and storage.
Sorbate preservatives generally perform better in acidic food systems. Their effectiveness is influenced by formulation pH, so pH should be considered when selecting and evaluating a sorbate preservative.
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Calcium Sorbate E203
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