Wacker HDK® NUTRITION Food Grade Silica: Ultra-High Purity E551 Additive for Modern Food Processing

With the continuous improvement of global food safety standards, food manufacturers have put forward higher requirements for the purity, batch stability and regulatory compliance of functional additives. As a top global specialty chemical manufacturer from Germany, Wacker has created the HDK® NUTRITION series of food grade fumed silica with more than 50 years of production experience and integrated manufacturing system, providing a safe, stable and efficient high-purity solution for the global food industry.

The core product of the series, HDK® N20 NUTRITION, is a synthetic hydrophilic amorphous silica produced by Wacker's proprietary flame hydrolysis process, with a SiO₂ content of ≥99.0% after ignition, an average particle size of less than 15μm, odorless and tasteless, and excellent batch-to-batch consistency. Wacker implements full-process quality control for the product, with strict limits on harmful impurities: lead content ≤5μg/g, arsenic content ≤1.5μg/g, and the content of sodium, aluminum, iron and other elements is far lower than the industry benchmark standard, fully meeting the strictest food safety requirements in the world.

As a legally compliant food additive INS No. E551, Wacker food grade silica has three core functions in food processing: first, it can effectively prevent agglomeration of powdered foods such as salt, spices, milk powder and protein powder, improve powder fluidity, and optimize the efficiency of pouring and filling in automated production lines; second, it can be used as a thickener and thixotropic agent for liquid foods, marinades and edible oils to control the rheological properties of the system; third, it can maintain the texture and shelf life stability of processed foods. The full series complies with EU (EU) 231/2012, FCC, JECFA standards and China GB 9685-2016, has passed HACCP, Halal and Kosher certification, and has a complete raw material to finished product traceability system, which is a reliable partner for food enterprises to achieve high-quality production.