PFAS in Paper and Board: Greaseproofing, Moulded Fibre and the Alternatives

In paper and board, PFAS had essentially one job: grease and oil resistance, with water resistance as its partner. It was applied to greaseproof papers and bags, fast-food wraps and cartons, baking papers, and moulded-fibre articles - bowls, plates, clamshells - whose fibres alone cannot hold a burger's fat or a soup's moisture. The Article 5 thresholds make intentionally PFAS-treated paper unmarketable for food contact in the Union from August 2026, and the total-fluorine screen finds the treatment reliably, because greaseproofing doses are far above the screening threshold.

The market's answer already exists at scale - Denmark's earlier ban forced it - and this guide maps both the detection and the alternatives so the transition reads as a purchasing programme, not a research project.

A paper range screens efficiently: total fluorine across the grease-resistant families first (wraps, bags, moulded fibre, coated boards), with plainly untreated papers (newsprint-style wraps, uncoated bags) documented by specification rather than by laboratory queue. Moulded fibre deserves the deepest attention: its forming process historically used PFAS as a mould-release and greaseproofing aid in one, and supplier practices varied widely by region and era. Imported moulded fibre and imported greaseproof specialities are the screening programme's first consignment - the same imported-decoration pattern the metals guide recorded, in a different chemistry. Results file per line, per the testing guide's records discipline, with the supplier declaration asked in the threshold-naming form.

Four alternative families carry the market. Mechanical and densified papers - glassine and greaseproof papers made by fibre treatment rather than coating - the oldest technology, excellent for many bakery and dry-fat uses, limited for hot wet fat. Dispersion and barrier coatings (acrylic, biopolymer and mineral systems) applied to board and paper: the volume route for fast-food board, with repulping behaviour that must be verified per product because coating chemistry decides the grade story as well. Moulded fibre reformulated with non-PFAS wet-end and surface treatments: available, improving, and worth testing against your menu's actual fat and dwell-time profile rather than a brochure's. And format change: where the food allows, containers whose material is inherently grease-proof (rigid plastics meeting their own duties, reusable systems at the counter) remove the question rather than answer it.

Each family trades something - cost, performance envelope, recyclability, supply depth. The honest guide's advice is to test against the real menu: most businesses find their range splits, with each family taking the applications it serves best.

The market's claim of choice - 'PFAS-free' - is a threshold claim in disguise and should be evidenced like one: intentionally added PFAS absent, screening below the relevant values, supplier declarations in threshold form. Several jurisdictions and retailer programmes define the claim by the total-fluorine indicator, which has the virtue of testability. Businesses should align the claim's working definition with the strictest programme they sell into, state the basis where the claim is made in B2B contexts, and resist extending the claim from the tested families to the whole range. A claim disciplined to its evidence is an asset; the same words stretched across an unscreened range are the finding a competitor's laboratory will eventually publish.

Conversion of paper and board lines away from PFAS is a mill-and-converter scheduling exercise: alternative treatments are qualified per machine and per application, and capacity in the first compliance years is allocated to customers who qualified early. Buyers who began with the screening programme hold their qualification places; buyers who begin at enforcement will queue behind them, in a market where every food-service chain in Europe is converting simultaneously. That queue - not the chemistry - is the real deadline in this guide, and it argues for starting the alternatives testing this quarter, against the real menu, with the suppliers you intend to be buying from in 2027.