Grease- and water-resistant food packaging without PFAS — dense molded fibre, glassine/high-density paper, and bio-based barrier coatings (chitosan, alginate, starch, proteins, plant waxes, PHA dispersions)

Replaces: PFAS grease-proofing agents in paper and molded fibre · Scope: food packaging · Evidence: high for the hazard

The chemical problem#

Fluorinated compounds make paper and plant-fibre packaging resistant to grease and water. US testing found fluorine in about 46 % of food-contact papers and 20 % of paperboard samples (Schaider et al. 2017). PFAS migrate into food, persist forever, and contaminate compost and soil. Denmark banned PFAS in paper and board food-contact materials in 2020. Several US states banned PFAS in food packaging, and the EU Packaging and Packaging Waste Regulation (2025) restricts PFAS in food-contact packaging. IARC classified PFOA as carcinogenic to humans (Group 1) in 2023.

Product overview#

PFAS-free alternatives are already on the market:

1. Physical barrier through fibre engineering: highly refined, dense fibres (glassine, greaseproof paper made by intensive refining), and dense molded fibre from bagasse, bamboo and wheat straw.
2. Bio-based coatings: chitosan (from crustacean shells or fungal biomass), alginate (from seaweed), starch, proteins (whey, zein), plant waxes (carnauba, rice bran), and PHA dispersion coatings (microbial polyesters that biodegrade in soil and marine environments).
3. Design: reusable containers (deposit systems) for takeaway, which remove the single-use problem.

Active ingredient / Composition#

Cellulose fibres; chitosan, alginate, starch, protein and wax coatings; PHA (polyhydroxyalkanoates produced by bacterial fermentation).

Key facts#

Advantages#

• No persistent fluorinated chemicals in food and compost.
• Uses agricultural residues (bagasse, straw), seaweed and seafood by-products.
• Truly compostable packaging (without PFAS, compost can be used safely).

Mode of action#

Dense fibre networks and continuous bio-polymer films block oil penetration physically (instead of lowering surface energy with fluorine chemistry).

Application#

Limitations#

• Hot, oily or wet foods for long durations remain challenging; coatings can cost more.
• Some “PFAS-free” coatings are fossil polymers (e.g. PE/PLA laminates) that complicate recycling. Choose bio-based and recyclable solutions.
• Chitosan from shellfish may raise allergen-labelling questions (fungal chitosan avoids this).

Evidence of displacement — D1: works, adoption not proven#

Assessment (hand-reviewed): No displacement: non-fluorinated alternatives ~1% of the market (older UK study).

Verified figures (the number is in the quoted sentence and the sentence is on the source page):

• displacement — The current market share of non-fluorinated alternatives appears to be approximately 1% or less. (global, 2020; weak: pfasfree.org.uk)
• performance — Modern fluorine-free formulations achieve grease barrier ratings of 11-12 on the TAPPI scale, which is comparable to the 12-13 rating of PFOA-based alternatives. (global, 2025; weak: marketintelo.com)
• economics — Technological advances have narrowed the price premium for fluorine-free coatings over traditional options from a historical 15-20% to 5-8%. (global, 2025; weak: marketintelo.com)

Suppliers — real products and services (from the vendor index)#

Companies below are active vendors in the vendor index whose own card (profile / official website) shows this product or service — matched 2026-09-28 by keyword and checked by hand against the card text. Being listed is not an endorsement; open each card for evidence, contacts and status.

Government funding signals#

Public grants for a specific technology are a leading indicator: governments fund what regulators want to replace and what is close to practical adoption. Searched on 2026-09-27 in: EU CORDIS (FP7, Horizon 2020, Horizon Europe), US federal awards (USAspending: USDA NIFA/ARS/APHIS/Forest Service, EPA, DOE, NOAA, USAID; plus NSF and NIH), UK UKRI Gateway to Research, Australian Research Council. Each grant below was reviewed by hand for relevance. China, Brazil and India are covered in the subsection below (publication-acknowledged grants). Not covered: Russia (RSF, FASIE — not reachable from the research environment) and national agencies outside these databases. Amounts are the funder’s contribution as recorded (US NIH/UKRI: per award or fiscal year).

Signal: Moderate. 1 relevant grant(s) · about €5.0M in total · jurisdictions: EU.

China, Brazil, India — national research grants acknowledged in publications#

Chinese, Brazilian and Indian funders have no open grant databases reachable here, so this measures scientific papers published since 2015 that acknowledge national government grants, taken from the grant numbers publishers deposit with Crossref. Only papers whose title contains this article’s key terms are counted (a conservative lower bound; “100+” = search window full). It shows research-funding intensity, not budgets. Funders: China — NSFC, National Key R&D Program, China Agriculture Research System; Brazil — CNPq, CAPES, FAPESP, Embrapa, FAPEMIG; India — DBT, DST, ICAR, SERB, CSIR, BIRAC. Rating per country: Strong ≥50 papers · Moderate 10–49 · Weak 1–9.

Scientific evidence#

• Schaider LA, Balan SA, Blum A, et al. (2017). Fluorinated compounds in U.S. fast food packaging. Environmental Science & Technology Letters 4: 105–111.
• Glüge J, Scheringer M, Cousins IT, et al. (2020). An overview of the uses of per- and polyfluoroalkyl substances (PFAS). Environmental Science: Processes & Impacts 22: 2345–2373.
• Zahm S, Bonde JP, Chiu WA, et al. (2024). Carcinogenicity of perfluorooctanoic acid and perfluorooctanesulfonic acid. The Lancet Oncology 25: 16–17 (summary of IARC Monographs Vol. 135).

Bioeconomy value#

Agricultural residues, seaweed, shell by-products and microbial polyesters replace fluorochemistry in food packaging.