Grace's Synthetic Amorphous Silica: EFSA Safety Reaffirmed for Food Additive Use | WR Grace & Co

Grace's Synthetic Amorphous Silica Safety Reaffirmed by European Food Safety Authority

WR Grace & Co.

Shanghai, March 14, 2025, 5:00 PM

The European Food Safety Authority (EFSA) has reaffirmed its previous conclusion that silica dioxide (E551), also known as synthetic amorphous silica (SAS), is safe as a food additive under the reported usage and conditions detailed in their report (see "Read More" below). The latest evaluation specifically examined SAS use in infant food (notably for babies under 16 weeks old), confirming no safety concerns at current exposure levels.

In fact, the European Union had already certified silica dioxide as a compliant carrier in food and health products under Regulation (EC) No. 1333/2008 and its amendments. The "Quantum satis" principle allows its use in food supplements at levels necessary to achieve intended effects, without strict upper limits. EFSA’s recent study further validates SAS’s safety.

Synthetic amorphous silica is widely used for its unique functional properties. As a carrier and anticaking agent, it prevents clumping and ensures smooth flow in powdered and granular foods. Its high purity, inertness, and proven performance make it indispensable in diverse food applications.

"EFSA’s thorough evaluation, which involved collecting and analyzing extensive data, reflects their rigorous commitment to safety. At Grace, we adhere to the highest quality, safety, and regulatory standards. This conclusion reinforces the safe use of our synthetic amorphous silica as a food additive," said Juergen Nolde, Global Product Management Director at Grace.

EFSA’s opinions are internationally recognized for their comprehensive, evidence-based, and scientifically rigorous standards. This report’s findings have far-reaching implications for the continued safe use of SAS globally.

For over 50 years, Grace’s synthetic amorphous silica has been applied in food and beverages, edible oil refining, and pharmaceuticals. Its uses include beer stabilization and clarification, moisture control in agricultural feed, and anticaking/flow-aid properties in powdered foods and nutrition products. Grace collaborated with industry partners to provide data and research for EFSA’s assessment.

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