The Morning an Italian Dried-Tomato Buyer Found Out "Food Grade" Was Not Enough

An industrial buyer in Modena who sources coated cellulose film for sun-dried tomato pouches spent several months on a quotation last year. The supplier was confident. The technical documentation packet arrived in PDF form on a Friday afternoon. By Monday morning, the buyer had pulled the shipment.

The reason was not visible on the first page of the technical data sheet. It was visible only when the buyer read the Declaration of Conformity (DoC) end to end — a step many procurement teams skip because the DoC is usually written in regulatory English that reads like boilerplate. The DoC referenced Regulation 1935/2004 but did not reference Regulation 10/2011, the implementing measure for plastic food contact materials. The migration test report referenced food Simulant D2 (vegetable oil), which is reasonable for an oily food like sun-dried tomatoes packed in olive oil, but the test conditions listed 10 days at 40°C, while the actual shipment would face warehouse temperatures above 25°C for up to 18 months under Italian summer retail conditions.

The regulatory gap was invisible without a buyer who knew what to look for. The supplier did not lose the business on price or lead time; they lost it on a question the procurement team had not thought to ask.

That question — the set of questions, actually — is what this article is built around. The remainder walks through the documentation chain a serious EU food-contact buyer should review, the simulant logic that determines whether a given test report is even relevant to your product, and the conversation you should have with your cellulose film supplier before authorising a first shipment. None of this is a substitute for a notified body or qualified regulatory counsel, but it is the working knowledge that separates a compliant shipment from a recalled one.

The Paper Trail That Makes or Breaks a Shipment

EU Regulation 10/2011 is implemented through a chain of evidence, not a single certificate. The chain is anchored by Article 16, which states the rule that no plastic food contact material or article may be placed on the EU market without a written Declaration of Conformity:

Article 16 of Regulation (EU) No 10/2011. "At the marketing stages other than the retail stage, a written declaration in accordance with Article 16 of Regulation (EC) No 1935/2004 shall accompany plastic materials and articles placed on the EU market. The declaration shall be issued by the business operator and shall make the identity of the substances used, the relevant restrictions, and the conditions of use available to the downstream operator."

The full regulation text, with consolidated amendments, is hosted on the European Commission's official EUR-Lex portal (Regulation (EU) No 10/2011 consolidated text). Buyers reviewing supplier documentation should reference the CELEX number 32011R0010 for the latest consolidated version, including the amendments adopted through 2023.

The DoC is the centre of the chain. Around it sit the supporting documents that make the DoC credible and reviewable. For a coated cellulose film, the chain includes a migration test report that records results against the right simulants; a substance inventory that lists each intentionally added substance by CAS number; a Good Manufacturing Practice (GMP) statement per Regulation 2023/2006; the multi-layer assembly declaration if the film has more than one layer; and the lot-level traceability record that allows a recall to be localised to a single manufacturing batch. Each document cross-references the others.

The chain usually breaks in the cross-references. A DoC dated several years ago is stale: Annex I is amended every one to two years, and a formulation the supplier has not changed may still be affected by an amendment the DoC does not yet cite. A migration test report that does not name the simulants used cannot be checked against the buyer's end-use. A substance inventory that lists "plasticiser" without a CAS number is not actionable for an SML review. Each gap is repairable, but only if the buyer notices it at the quotation stage rather than at the goods-receipt stage.

In the Modena dried-tomato scenario, the DoC referenced only Regulation 1935/2004 and not 10/2011. The fix would have been straightforward — issue a DoC referencing both, attach the corresponding migration test report, and reissue the technical data sheet to reflect the updated compliance posture. A couple of weeks of work, not several months. The cost of catching it late was the lost business.

The Five Simulants and Why They Matter for Your SKU

The migration testing under 10/2011 is built around five food simulants that represent the chemical aggression of the real food the film will contact. Picking the right simulant is half the compliance battle, and the wrong simulant is the wrong test.

Take Simulant A — distilled water. It represents aqueous foods with a pH above 4.5: tea pouches, coffee pods, fresh produce wrapping. The chemistry is straightforward: the water pulls water-soluble migrants out of the film at the test temperature. Reference condition: 10 days at 40°C.

Simulant B — 3% acetic acid in water — represents aqueous foods at pH 4.5 or below: vinegar single-serve pouches, citrus wraps, confectionery with fruit acids. The acid accelerates migration of substances that would, in a neutral environment, stay locked in the polymer. Same 10 days at 40°C as Simulant A.

Simulant C — 10% ethanol — represents alcoholic foods up to 10% ABV: flavoured tea with ethanol extract, herbal tincture pouches. Simulant D1 — 50% ethanol — represents alcoholic foods above 10% ABV and oil-in-water emulsions. The ethanol content matters because ethanol is a better solvent for many migrants than water. The shift from C to D1 is one of the more common errors in cellulose film sourcing — a supplier quoting Simulant C for a buyer who needs D1 is not testing the relevant use case.

Simulant D2 — vegetable oil, typically olive oil or a synthetic triglyceride mix — represents fatty foods: dried fruits in oil infusion, chocolate, butter wraps. This is the simulant most relevant for the Modena dried-tomato scenario. Reference condition: 10 days at 40°C.

Simulant E — MPPO, a poly(2,6-diphenyl-p-phenylene oxide) powder used as a dry-food simulant — represents dry foods with low water activity: bakery, biscuits, dried fruit, spice sachets, dry confectionery. Reference condition: 10 days at 60°C. Simulant E is the only simulant whose reference condition is not 40°C, because dry-food contact at ambient temperature can be modelled by a higher temperature over a shorter period.

The convention of 10 days at 40°C for simulants A, B, C, D1, and D2 represents long-term ambient storage. If your end-use temperature differs — say, hot-fill at 85°C or retort sterilisation at 121°C — Annex III Chapter 2 of 10/2011 provides substitute conditions. A buyer specifying retort-grade packaging should ensure the migration test was conducted under a sterilisation-appropriate condition rather than the ambient default. Many cellulose film suppliers do not have retort-grade test reports; the cellulose film may still be retort-suitable, but the supporting evidence will need to be commissioned separately, which adds weeks to the project timeline.

A practical decision flow looks like this: identify your food category, identify the conventional simulant, then confirm the test report matches both the simulant letter and the test condition. If the report does not match both, the report does not cover your SKU — and asking the supplier to "reissue" the report is not a substitute for asking them to commission a new test.

For cellulose film buyers who are still selecting between food simulants for their SKU, the food packaging film application page walks through the typical food categories XIADE supplies — tea, coffee, dried fruit, confectionery, bakery — and links each category to the conventional simulant and the typical test conditions. It is not a substitute for a notified test house, but it is the right starting map for the conversation with the supplier.

The Numbers That Actually Mean Something

Two numerical caps govern compliance under 10/2011. The Overall Migration Limit (OML) is the ceiling on the total non-volatile substances that can migrate from the material into food. The Specific Migration Limit (SML) is the per-substance cap for substances listed in Annex I.

Article 11 of Regulation (EU) No 10/2011. "The overall migration from plastic materials and articles shall not exceed 10 milligrams per square decimetre of contact surface (mg/dm²). For materials and articles intended for food contact by infants and young children, the overall migration limit shall be 60 milligrams per kilogram of food (mg/kg), using the alternative expression set out in Annex V."

The two expressions — 10 mg/dm² and 60 mg/kg — are alternatives, not stacked limits. A migration test report should state which expression was used and the rationale. For most cellulose film applications the 10 mg/dm² expression applies because the buyer is not specifying infant or toddler food contact. For cellulose film intended for infant cereal pouches or baby food wraps, the 60 mg/kg expression applies, and the test conditions in the report must reflect that.

The SML framework is the second layer. Where Annex I assigns a specific migration limit to an individual substance — 60 mg/kg for ESBO (epoxidised soybean oil, a common plasticiser in cellulose film lacquers and PVC gaskets); 3 mg/kg for BHT (butylated hydroxytoluene, an antioxidant); 60 mg/kg for ATBC (acetyl tributyl citrate, a primary plasticiser in many bio-based films) — the migration test report must record the result for that substance against its SML.

For substances without an SML but with a restriction, the regulation provides QM and QMA limits (QM in 6 dm² of packaging). These typically apply to oligomers or migration products with no toxicologically-derived SML. A test report that does not address QM/QMA where applicable is incomplete.

The OML/SML framework is anchored to surface area, not to mass of food. This is one of the more common mistakes in buyer reviews. A supplier quoting migration results in mg/kg of food rather than mg/dm² of material is using the alternative expression; the report must explicitly state which expression was used and the rationale for the choice. Article 17 of 10/2011 requires that migration results be expressed in the units that allow comparison with the limits. Suppliers who do not state the units have not satisfied Article 17.

Substances on the Watchlist — Without the Spreadsheet

Annex I to 10/2011 lists authorised monomers, other starting substances, and additives used in plastic food contact materials. The list is long; the substances that surface in cellulose film sourcing conversations are not. There are essentially four practical categories a buyer encounters, and each one has a representative substance that comes up in almost every conversation.

The first category is monomers and other starting substances — the building blocks of the polymer chain. Vinylidene chloride (VDC) is the monomer for the PVdC barrier coating used on many coated cellulose films. Acrylates and methacrylates are the monomers for coating polymers that improve printability and sealability. The migration check for monomers is residual monomer after polymerisation; the residual monomer cap is captured by the SML assigned to each monomer in Annex I.

The second category is additives — plasticisers, stabilisers, slip agents that modify processing and end-use properties. Epoxidised soybean oil (ESBO, SML 60 mg/kg), butylated hydroxytoluene (BHT, SML 3 mg/kg), and acetyl tributyl citrate (ATBC, SML 60 mg/kg) appear in nearly every cellulose film technical data sheet. If your supplier's substance inventory does not list these three, the inventory is incomplete. If the migration test report does not show results against the SMLs for these three, the report does not cover the formulation.

The third category is polymer production aids (PPA) — catalysts, chain transfer agents, polymerisation solvents — that are used during polymerisation but are not intended to remain in the finished material. Where Annex I assigns no SML, the limit is expressed as QMA. PPAs are the source of many of the trace migrants that show up in migration tests at low levels; the regulatory framework accepts these traces provided the QMA is not exceeded.

The fourth category is surface treatment agents and coatings — nitrocellulose lacquer, PVdC coating, bio-based barrier coatings. Migration under the coated layer is the reference frame for the test, because the food contacts the coating first. The Annex I framework applies to the coating as a separate food contact layer, and the DoC should describe the coating separately from the base cellulose film.

Where a supplier uses a proprietary additive not listed in Annex I, the supplier must apply for a new authorisation or use the substance under a national derogation. A buyer who encounters an unlisted substance should request the supplier's evidence of authorisation before shipment. This is a frequent source of supply chain delay when not addressed at the quotation stage. The XIADE documentation set explicitly references "EU food contact standards" on the public product page; the full DoC and supporting migration test report are issued on a per-customer basis once the order is confirmed.

For deeper substance-level review, the Food Packaging Forum maintains a public substances database that maps each FCM substance number to its regulation, SML, and toxicological basis. For standard-by reference, BSI Group hosts the EN 13130 series that underpins specific migration testing. Both resources are useful when the buyer's internal regulatory team is reviewing a supplier's substance inventory.

Questions You Actually Want on the Call

Once the documentation chain is in place, the next test is conversational. A supplier whose DoC and migration test report are technically complete may still be the wrong supplier if the conversation about your specific SKU is not handled with the same rigour. A handful of questions are worth putting on the table before the first purchase order is signed. They are questions that the technical documentation cannot answer in writing.

The first question is about the reference report versus your SKU. A supplier's reference migration test report was generated for a specific film construction, with a specific coating weight, on a specific production line. If your SKU is the same construction and the same coating weight, the reference report covers your SKU. If your SKU differs — say, a different barrier coating or a higher coating weight — the reference report does not cover your SKU, and a fresh test is required. The conversation reveals whether the supplier is willing to commission the fresh test, what the cost will be, and how it will be reflected in the lead time.

The second question is about the formulation lock. A cellulose film formulation that is today compliant under the current Annex I may not be compliant under the next Annex I amendment. The buyer who specifies a long-term supply agreement wants to know whether the supplier will lock the formulation for the agreement's duration, or whether the supplier reserves the right to change additives within the constraints of the regulation. The answer affects the buyer's stability of supply and the buyer's ongoing regulatory documentation. A buyer who wants formulation lock should write it into the supply agreement; a verbal commitment is not enforceable.

The third question is about the regulatory horizon. EU Regulation 10/2011 has been amended six times in the past decade; the next amendment is a question of when, not if. The supplier should be able to articulate how the amendment cycle is monitored, how new restrictions are propagated into the formulation, and what the buyer's notification window will be. A supplier who treats the regulatory horizon as the buyer's problem is not the supplier to sign a long-term agreement with.

The conversation reveals what no documentation packet can answer on its own. If the supplier's answers are confident and specific, the documentation review becomes routine. If the answers are vague or defensive, the documentation review should be more thorough, not less.

Frequently Asked Questions

1. Is cellulose film automatically in scope of EU 10/2011?

Yes, when the cellulose film is intended to come into contact with food. The regulation covers plastics and, by extension, multi-layer materials that include a plastic layer. Coated cellulose film with a barrier coating generally falls inside the scope because the coating is treated as a food contact layer under the functional barrier concept.

2. What is the difference between OML and SML under 10/2011?

OML (Overall Migration Limit) caps the total amount of all non-volatile substances that can migrate from the material into food at 10 mg per square decimetre of contact surface, with an alternative expression of 60 mg per kilogram of food for infant and toddler food contact. SML (Specific Migration Limit) caps individual authorised substances by their specific toxicological profile. OML is the ceiling; SML is the per-substance rule that drives testing design.

3. Which food simulant do buyers usually require for dried fruit packaging?

For dried fruit, confectionery, and bakery products with low water activity, Simulant E (MPPO) or Simulant D2 (vegetable oil) is the typical choice under Regulation 10/2011. Buyers should require that the test report identifies the chosen simulant and the test conditions. The reference condition for Simulant E is 10 days at 60°C.

4. Can a supplier's word replace a Declaration of Conformity?

No. Under Article 16 of 10/2011, a written Declaration of Conformity (DoC) is mandatory for each material or article placed on the EU market. The DoC must reference the relevant EU regulations, identify the supplier, list the substances subject to restrictions, and specify migration test conditions. Verbal assurances do not satisfy the regulation.

5. How long does a cellulose film DoC remain valid?

DoCs remain valid as long as the composition of the film, the manufacturing process, and the referenced regulations do not change. Substantial changes to formulation, supplier of additives, or regulatory amendments require a new DoC. Most industrial buyers require a DoC dated within the past 12 months at the time of shipment.

The Anchor to Carry into the Conversation

EU Regulation 10/2011 is not a checkbox; it is a chain of evidence anchored by Article 16. The chain runs through the DoC, the migration test report, the substance inventory, and the GMP statement. The chain is tested by the right simulant and the right test condition. The chain is verified by a buyer who reads the documents end to end and asks the right questions on the call that no document can answer alone.

For buyers sourcing coated cellulose film for EU food packaging, the path from "food grade" claim to compliant shipment runs through the work described above. The Modena buyer lost several months by skipping the work. The next buyer — the one who reads the DoC end to end, identifies the simulant gap, asks the right questions on the call, and front-loads the documentation request at the RFQ — will save the time.

Where the buyer's specification exceeds the cellulose film supplier's reference report, a fresh migration test is the answer. Where the buyer's specification fits within the reference report, the DoC and the reference report together constitute the compliance chain. Where the supplier cannot or will not provide either, the supplier is not the right supplier for this SKU, regardless of price or lead time.

For buyers who want to request a sample, a DoC, and a supporting migration test report for a specific coated cellulose film SKU, the conversation starts with the food category, the contact conditions, and the coating weight, not with the price.