Food-Grade Lubricants: Compliance and Selection
Navigate NSF food safety classifications and select compliant lubricants for food processing equipment.
Understanding NSF Food Safety Classifications
The National Sanitation Foundation (NSF) maintains the primary classification system for lubricants in food processing. The three primary classifications are H1 (incidental food contact), H2 (non-food contact), and 3H (direct food contact).
Regulatory Framework
Food-grade lubricants must comply with FDA 21 CFR 178.3570 in the United States. HACCP plans must address lubricant selection as potential contamination sources.
Selection Guidelines
Bearings require H1-rated greases with superior water washout resistance. Hydraulic systems need fluids balancing fire resistance and hydrolytic stability.
| Classification | Food Contact | Max Temp (°C) |
|---|---|---|
| H1 | Incidental contact OK | Up to 200 |
| H2 | No food contact | Up to 180 |
| 3H | Direct contact approved | Up to 150 |
- Map all lubrication points and identify food contact zones
- Select lubricants matching NSF classification
- Train maintenance personnel on food safety requirements
Frequently Asked Questions
What is the difference between NSF H1 and H2?
H1 lubricants are authorized for areas with possible incidental food contact. H2 lubricants are for non-food contact areas only.
How do I verify food-grade compliance?
Check the NSF White Book database or verify the NSF registration number on the product label.
