When sourcing degreasers for food processing applications, understanding certification categories is the foundation of compliant procurement. The confusion around terms like "food-grade," "NSF certified," and "food-safe" creates significant compliance risks for facility managers and procurement teams. This section breaks down the technical distinctions that matter for B2B buyers evaluating suppliers on Alibaba.com.
- H1 (Incidental Contact): Allows trace amounts up to 10ppm in food products. Required for lubricants and cleaners on equipment where food contact is possible but not intended.
- H2 (No Food Contact): For use in areas where no food contact can occur. Lower cost but limited application scope.
- H3 (Soluble Oils): Used for rust prevention on hooks, trolleys, and similar equipment. Must be removed before food contact.
The NSF White Book serves as the definitive global directory for registered nonfood compounds. Registration requires four critical steps: formulation review (verifying all ingredients comply with FDA 21 CFR regulations), label review (ensuring proper usage instructions and warnings), traceability review (manufacturing facility audit), and product testing (performance validation). This rigorous process explains why NSF-certified degreasers command 30-50% price premiums over non-certified alternatives.
NSF H1 certification allows incidental food contact up to 10ppm, but this is NOT intended for direct food contact. Critical distinction for B2B buyers understanding certification scope. [1]
ISO 21469 provides international standardization for food-grade lubricants and cleaners, particularly important for Southeast Asian exporters targeting European and Middle Eastern markets. While NSF is US-centric, ISO 21469 certification demonstrates global compliance capability—a key differentiator when competing on Alibaba.com's international marketplace.

