Food-Contact Material Compliance: FDA 21 CFR, EU 10/2011 & Migration Testing Guide

Overview #

When a brand partner asks us to produce packaging that will directly contact food — whether that’s a folding carton inner liner, a flexible pouch, a paper sleeve around a snack bar, or a printed insert inside a tea tin — the compliance question is not optional and it is not simple. FDA 21 CFR (Parts 170–199 for food additives, Part 176 for paper and paperboard, Part 177 for polymers) and EU Regulation 10/2011 on plastic food-contact materials each impose specific migration limits, substance restrictions, and documentation requirements that must be resolved before we run a single production sheet. This guide covers the key parameters we test and control, the standards we work to, and how we structure compliance documentation for brand partners in the US, EU, and export markets. If your packaging touches, wraps, or encloses food at any point in the supply chain, this is the specification framework we apply.

Key Regulatory Frameworks and Substance Restrictions #

The two frameworks we encounter most frequently are FDA 21 CFR and EU regulation 10/2011, and they are not equivalent — a material compliant under one is not automatically compliant under the other.

Under FDA 21 CFR Part 176.170, paper and paperboard in contact with aqueous and fatty foods must meet extractable limits: total extractables in water at 49°C must not exceed 0.5 mg/in² (approximately 77.5 mg/dm²), and in n-heptane at 49°C must not exceed 0.5 mg/in² as well. For polymer coatings and films, Part 177 governs — for example, polyethylene used as a heat-seal layer must comply with 21 CFR 177.1520, which specifies density ranges (0.85–0.96 g/cm³ for LDPE/LLDPE grades) and extraction limits.

Under EU 10/2011, the framework is built around an Overall Migration Limit (OML) of 10 mg/dm² of food-contact surface, and Specific Migration Limits (SMLs) for individual regulated substances listed in Annex I. For example, the SML for bisphenol A (BPA) is 0.05 mg/kg food simulant, and for primary aromatic amines the total SML is 0.01 mg/kg. Substances not listed in Annex I are prohibited unless covered by a national authorisation or a derogation.

For inks and coatings, we reference the EuPIA Exclusion Policy and the Swiss Ordinance SR 817.023.21 (which many EU buyers treat as a de facto standard for printing inks on food packaging), as well as REACH Regulation (EC) 1907/2006 for substance restriction and SVHC (Substances of Very High Concern) declarations.

Migration Testing Parameters and Measurement Methods #

Migration testing is where compliance becomes concrete. We do not rely solely on supplier declarations — for any new substrate, ink system, or coating entering our food-contact production lines, we require third-party migration test reports, and for customer-specific formulations we commission testing directly.

Overall Migration (OM) is tested using food simulants defined in EU 10/2011 Annex III: simulant A (10% ethanol, aqueous foods), simulant B (3% acetic acid, acidic foods), simulant C (20% ethanol, alcoholic foods), simulant D1 (50% ethanol, high-alcohol or fatty foods), and simulant D2 (vegetable oil, fatty foods). Test conditions follow the intended use — for ambient dry food packaging we typically test at 40°C for 10 days; for hot-fill applications we test at 70°C for 2 hours followed by 40°C for 10 days.

Specific Migration (SM) for regulated substances is measured by GC-MS or LC-MS/MS depending on the analyte. For photoinitiators — a critical concern in UV-cured offset and flexo inks — we test for ITX (isopropylthioxanthone), benzophenone, and 4-methylbenzophenone. The EU SML for benzophenone is 0.6 mg/kg food simulant. In our UV flexo lines, we specify low-migration (LM) photoinitiator systems and require that cured ink films achieve a minimum UV dose of 180 mJ/cm² to ensure complete cure — under-cured ink is the primary source of photoinitiator migration in our experience.

Residual Solvent testing per GB/T 10004 and EN 13130 is mandatory for all solvent-based gravure and lamination jobs. Our internal acceptance threshold is ≤5 mg/m² total residual solvent, with benzene and toluene individually not detectable above 0.01 mg/m² by GC headspace analysis.

Set-off Migration — the transfer of ink components from the printed outer surface to the food-contact inner surface through a stack or roll — is tested per the Cembrit/FABES set-off test protocol. For folding cartons printed on the outer face only, we require set-off migration of regulated photoinitiators to be below 10 µg/kg food (the EU enforcement threshold used by most member states).

Substrate and Ink System Qualification for Food-Contact Lines #

Not every substrate or ink system we run is qualified for food-contact production. We maintain a qualified materials list (QML) that is reviewed every 12 months and updated whenever a supplier changes a formulation.

For paperboard, food-contact grades must carry a Declaration of Compliance (DoC) from the mill confirming compliance with FDA 21 CFR Part 176 and/or EU 10/2011 as applicable. We specify virgin fibre board (FSC-certified where required) for direct food contact — recycled fibre board carries a risk of mineral oil hydrocarbon (MOSH/MOAH) contamination that is difficult to control below the EFSA guidance levels (MOSH ≤12 mg/kg food for saturated hydrocarbons C16–C35). Where recycled board is used for outer cartons with a functional barrier, the barrier layer must demonstrate OML compliance independently.

For inks, our food-contact lines run exclusively with ink systems that carry a full Declaration of Compliance to EU 10/2011 and/or FDA 21 CFR, with a positive list of all intentionally added substances and their CAS numbers. We do not accept “compliant by formulation” claims without supporting test data. Our standard ink cure energy on UV offset for food-contact jobs is 200–220 mJ/cm² (measured by UV radiometer at press), which is 10–20% above the minimum threshold to provide a cure safety margin.

For adhesives used in lamination and carton gluing, we specify water-based or hot-melt systems with DoC for food contact. Solvent-based adhesives are not used on food-contact lines. Lamination bond strength is tested per ASTM F904 — our minimum acceptance value is 1.5 N/15mm for PE/paper laminates and 2.0 N/15mm for PET/PE structures.

Specification Notes for Brand Partners #

When you brief us on food-contact packaging, the first thing we need to know is the food type and contact conditions: is it dry, aqueous, fatty, or acidic? Will the packaging be used at ambient temperature, chilled, or hot-fill? These two parameters determine which food simulants and test conditions apply under EU 10/2011, and which CFR sections govern under FDA rules. A snack bar wrapper and a ready-meal tray require completely different compliance pathways even if they look similar on a brief.

The most common mistake we see is brands specifying a substrate or ink system they have used for non-food packaging and assuming it carries over. It does not. Every material in the food-contact construction needs its own DoC, and the combination of materials (substrate + ink + coating + adhesive) must be assessed as a system, not just as individual components.

Our compliance sampling process: we provide a Declaration of Compliance draft within 5 working days of material confirmation. Physical samples with full migration test reports (third-party lab, typically SGS, Intertek, or Eurofins) are available in 15–20 working days depending on test conditions required. Production lead time after compliance approval is 20–30 working days for folding cartons and 25–35 working days for flexible laminate structures.

Frequently Asked Questions #

Q1: What is the Overall Migration Limit under EU 10/2011, and how do you verify your packaging meets it?
A: The OML under EU 10/2011 is 10 mg/dm² of food-contact surface. We verify compliance through third-party migration testing using the food simulants specified in Annex III of the regulation, tested at conditions matching the intended use (e.g., 40°C for 10 days for ambient dry food). Test reports from accredited labs (SGS, Intertek, Eurofins) are provided with every food-contact production order.

Q2: What is your MOQ and lead time for food-contact compliant folding cartons?
A: Our MOQ for food-contact folding cartons is typically 5,000 units for standard sizes, though this varies with structural complexity. Lead time after compliance approval and artwork sign-off is 20–30 working days. If third-party migration testing is required for a new material combination, add 15–20 working days for the testing cycle before production can begin.

Q3: Do your food-contact packaging materials comply with both FDA 21 CFR and EU 10/2011 simultaneously?
A: For most paper and board substrates, yes — we specify grades with dual DoC covering both FDA 21 CFR Part 176 and EU 10/2011. For polymer films and coatings, dual compliance is assessed case by case, since the positive-list approach of EU 10/2011 Annex I and the specific CFR parts for polymers (e.g., 21 CFR 177.1520 for polyethylene) have different substance scope. We will confirm dual compliance status during the material qualification stage.

Q4: Can you print food-contact packaging with UV-cured inks, and how do you control photoinitiator migration?
A: Yes, but only with low-migration (LM) UV ink systems that carry a full Declaration of Compliance. We control photoinitiator migration by specifying a minimum cure energy of 200–220 mJ/cm² on our UV offset lines, measured by inline UV radiometer on every job. The EU SML for benzophenone is 0.6 mg/kg food simulant — our LM ink systems are formulated to stay well below this threshold at our standard cure parameters.

Q5: What happens if a migration test result exceeds the SML for a regulated substance?
A: If a test result exceeds an SML — for example, a photoinitiator reading above its Annex I limit — we immediately quarantine the affected batch and trace back to the ink lot and cure parameters. In our experience, exceedances are almost always caused by under-cure (UV dose below 180 mJ/cm²) or a supplier formulation change that was not flagged to us. We re-test after corrective action, and no non-conforming material is released. We document the non-conformance, root cause, and corrective action in a formal NCR report provided to the brand partner.

Planning a food-contact packaging project? Contact our team to request a complimentary specification review and sample quote.