Introduction: What is Sodium Benzoate?

Sodium benzoate is the sodium salt of benzoic acid and a widely-used preservative for food and beverage products. Its effectiveness in acidic environments makes it ideal for soft drinks, fruit juices, jams, sauces, pickles, and similar goods. The compound is odorless, highly soluble in water, and acts by inhibiting the growth of bacteria, molds, and yeasts—thereby significantly extending shelf life.​

Applications in Food & Beverage

Food and beverage manufacturers rely on sodium benzoate primarily in products with a pH below 4.5, as it functions best in acidic conditions. Common applications include carbonated beverages, acidic sauces, fruit preserves, pickles, and dairy products. When used correctly at recommended concentrations (typically 0.05–0.1%), sodium benzoate maintains flavor, color, and freshness without impacting taste, and supports longer shelf life amid growing distribution demands.​

Regulatory Standards and Safety Limits

Sodium benzoate is classified as Generally Recognized as Safe (GRAS) by the FDA and approved by the EFSA for food applications, with strict concentration limits—usually no more than 0.1% by weight in finished products. Safety is confirmed by large-scale toxicology studies and official toxicological reviews; however, clear labelling and careful adherence to maximum allowed levels are essential to regulatory compliance. Acceptable Daily Intake (ADI) is set at 5 mg per kg body weight by EFSA to minimize any potential risk from cumulative exposure.​

Quality Grades & Supplier Selection

Buyers should demand food-grade sodium benzoate from certified suppliers, which means it meets purity standards of at least 99% and is accompanied by Certificates of Analysis (COA) detailing residue, contaminants, and traceability. Reputable suppliers adhere to FCC, USP, and other international benchmarks, offering products tested by independent third-party labs for safety and compliance. Assessing suppliers’ technical support, documentation practices, and responsiveness can help ensure ongoing quality and protect brand reputation.​

Buying Tips and Best Practices