Food contact plastics must meet strict regulatory requirements to ensure consumer safety. This guide covers the major regulatory frameworks — FDA 21 CFR (USA), EU Regulation 10/2011 (Europe), and GB 9685 (China) — and provides practical guidance on material selection, migration testing, and compliance documentation for food packaging applications.
1. Food Contact Regulations Overview
Food contact materials (FCMs) are regulated differently in each major market. Understanding these frameworks is essential for manufacturers exporting food packaging globally.
Key Regulatory Bodies: - FDA (USA): 21 CFR Parts 174-179 govern food additives including plastic components in food contact - EFSA (EU): Regulation (EU) 10/2011 on plastic materials and articles in contact with food - NMPA (China): GB 9685-2016 national standard for food contact materials - JETRO (Japan): Food Sanitation Act with positive list system
Scope of Regulation: - Monomers and starting substances used in polymer production - Additives, fillers, colorants, and processing aids - Migration limits for specific substances - Overall migration limits (OML) - Trace element and heavy metal restrictions
2. FDA vs EU vs China Standards Compared
Each regulatory framework takes a different approach to controlling food contact substances.
FDA 21 CFR (United States): - Based on Food Contact Substance (FCS) notifications and GRAS determinations - Specific migration limits (SML) for individual substances - Food simulant testing (food-type conditions: aqueous, acidic, alcoholic, fatty) - Extractables testing required for many polymer types - Generally recognized as safe (GRAS) list for established substances
EU Regulation 10/2011 (Europe): - Union list of authorized monomers and additives - Overall migration limit (OML): 60 mg/kg (10 mg/dm²) - Specific migration limits (SML) for listed substances - Food simulants A-E for different food types - Declaration of compliance (DoC) required throughout supply chain
GB 9685-2016 (China): - Positive list approach similar to EU framework - SML values often harmonized with EU 10/2011 - Required for products sold in Chinese market - Testing must be done by accredited Chinese laboratories
Key Differences: - FDA uses extractables while EU/China use migration tests - FDA food simulants differ from EU simulants A-E - EU requires Declaration of Compliance; FDA uses FCN process - China adds additional heavy metal and fluorescence requirements
3. Material Selection for Food Contact
Selecting the right polymer for food contact applications requires balancing regulatory compliance with performance requirements.
Approved Polymers for Food Contact: - Polyethylene (PE): Most widely used. LDPE for films, HDPE for bottles and containers. Excellent chemical resistance, low cost. - Polypropylene (PP): Microwave-safe, higher heat resistance than PE. Used for containers, closures, and films. - Polyethylene terephthalate (PET): Clear, strong, good gas barrier. Dominant in beverage bottles and food trays. - Polystyrene (PS): Clear (GPPS) or impact modified (HIPS). Used for dairy containers and disposable items.
Masterbatch Considerations: - Color masterbatch carrier resin must be food-contact compliant - Pigments must be on the positive list for the target market - TiO2, carbon black, and iron oxide are universally approved - Organic pigments require individual regulatory review - Recommended loading: 1-5% for food contact applications
Additive Restrictions: - Slip agents: Erucamide and oleamide generally approved - Antioxidants: Irganox 1010, 1076 widely approved - UV stabilizers: Limited options; HALS generally not food-contact approved - Antistatic agents: Glycerol monostearate is common approved option
4. Migration Testing Requirements
Migration testing demonstrates that substances do not transfer from packaging into food at harmful levels.
Testing Process: 1. Sample Preparation: Cut packaging to standard surface area 2. Simulant Selection: Choose based on food type 3. Conditioning: Expose to simulant at defined time and temperature 4. Analysis: Measure migrated substances via GC-MS, HPLC, or ICP
EU Food Simulants: - Simulant A: 10% ethanol (aqueous foods) - Simulant B: 3% acetic acid (acidic foods) - Simulant C: 20% ethanol (alcoholic foods) - Simulant D1: 50% ethanol (fatty foods, alternative to olive oil) - Simulant E: 95% ethanol (high-alcohol foods)
Test Conditions: - Standard conditions: 10 days at 40°C (room temperature storage) - Hot fill: 2 hours at 70°C - Microwave: 2 hours at 100°C or 1 hour at 121°C - Frozen storage: 10 days at 5°C
Acceptance Criteria: - OML: Total migration ≤ 60 mg/kg food - SML: Individual substance migration below listed limit - No detectable toxicological concern for non-listed substances
5. Building a Compliance Documentation Package
Proper documentation is essential for demonstrating compliance and enabling smooth customs clearance in target markets.
Required Documents: - Declaration of Compliance (DoC): Mandatory in EU supply chain, recommended globally - Migration Test Reports: From accredited laboratories (ISO 17025) - Material Specifications: Polymer grade, additive list, colorant details - Good Manufacturing Practice (GMP): Documentation per EU 2023/2006 - Traceability Records: Batch-level traceability from raw material to finished product
Best Practices: - Use food-contact certified masterbatch grades exclusively - Maintain supplier declarations for all raw materials - Conduct annual migration testing for ongoing compliance - Store test reports for minimum product lifetime plus 2 years - Update compliance when reformulating or changing suppliers
Working with YicaiPlas: Our food-contact masterbatch grades come with full regulatory documentation including FDA compliance statements, EU positive list verification, and GB 9685 test reports. Contact our compliance team for specific market requirements.