ZLSIL-A325 325-Mesh Food Grade Silica (E551) (Supplementary general FAQ) 40.What is the particle size of ZLSIL-A325? This product has a standard particle size of 325 mesh, with 325 mesh sieve residue ≤0.5%. The particle size is uniform, suitable for conventional food anti-caking and flow aid needs. 41.What certifications does ZLSIL-A325 have? It complies with China's GB 2760, US FDA, and EU E551 regulations, has obtained a food production license, and can be used for domestic and basic export food production. 42.What is the recommended addition rate for ZLSIL-A325? The recommended addition rate is 0.1%-1.0%, suitable for general scenarios such as grain processed products, ordinary condiments, and feed additives.