Regulations & Policy

Bioplastics vs Natural Polymers: Why brands are switching away from plastic

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Zerocircle’s patented seaweed-based pellets are optimised for existing manufacturing lines so a manufacturer can adopt these materials without any added CAPEX.

PLA doesn't recycle. PFAS doesn't break down. See why restaurants and brands are switching to natural polymers and the lifetime cost of staying with plastic.

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Zerocircle Staff

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For food packaging sold in Europe, the argument about PFAS is over. Since 12 August 2026, EU packaging rules have set hard limits on how much PFAS food packaging can contain. The ceiling is 25 parts per billion for any single PFAS and 250 parts per billion for the total. There is no grace period for old stock. Packaging manufactured before that date but sold after it still has to comply.

If you ship into Europe, this is not something to plan for. It is a specification your current stock either meets or does not.

Europe is not finished

In March 2026, both scientific committees advising the EU chemicals agency backed a far wider PFAS restriction covering roughly 14,000 substances across nearly every industry. The decision now sits with the European Commission. If it follows that advice, many uses could be restricted from 2029.

Two further packaging dates are already fixed. Compostability rules apply to certain packaging from February 2028. Recyclability rules begin deciding what can be sold at all from 2030.

So the material question is not whether your packaging clears the PFAS limit today. It is whether it clears three gates in four years.

EU compliance timeline for food-contact packaging

Verified against Regulation (EU) 2025/40 and ECHA's published state of play, September 2026. Only the first row is currently in force. The other three can move.


Date
Status
What applies
Detail
Legal basis
12 August 2026
In force
PFAS limits in food-contact packaging
Three thresholds apply: 25 ppb for any individual PFAS by targeted analysis, and 250 ppb for the sum of targeted PFAS, both excluding polymeric PFAS, plus 50 ppm for total PFAS including polymeric. Commission guidance treats total fluorine below 50 ppm as compliant with no further testing. There is no stock-exhaustion period for non-compliant packaging first placed on the market after this date.
PPWR Art. 5(5), Regulation (EU) 2025/40
12 February 2028
Fixed date
Compostability, specified formats only
Permeable tea and coffee bags, single-serve beverage units disposed of with the product, and sticky labels on fruit and vegetables must be compostable in industrially controlled conditions to EN 13432. Member States may additionally require home compostability. This does not extend to takeaway packaging generally.
PPWR Art. 9
2029 at the earliest
Pending decision
EU-wide PFAS restriction (REACH, not packaging law)
Covers around 14,000 substances. RAC adopted its final opinion on 2 March 2026. SEAC agreed a draft opinion, with consultation closing 25 May 2026. ECHA delivers the combined final opinion to the Commission by end 2026, and the Commission decides with Member States, expected in 2027. Food-contact packaging is already covered by PPWR Art. 5(5), so the marginal effect on packaging is narrower than the headline suggests.
REACH, Regulation (EC) No 1907/2006
1 January 2030 at the earliest
Conditional
Recyclability grade required for market access
Packaging must reach grade A, B or C, set at 95%, 80% and 70% recyclability per unit by weight. Below grade C it cannot be placed on the market. Applies from 1 January 2030 or 24 months after the design-for-recycling delegated acts enter into force, whichever is later. Those acts are due by 1 January 2028 and have not been adopted; the December 2025 Environmental Omnibus proposed delaying that deadline. From 1 January 2038 only grades A and B remain.
PPWR Art. 6 and Annex II
Article 6(1) already requires packaging to be recyclable. Until the design-for-recycling rules apply, that duty is met under the previous Packaging Directive requirements. No grade is required yet.
Every packaging type placed on the EU market also needs an EU Declaration of Conformity from 12 August 2026 (Art. 18). If your brand appears on the packaging, you may be the producer who has to issue it (Art. 21).

The US is a patchwork

Maine banned PFAS in food packaging first, in 2019. New York followed at the end of 2022 and California in January 2023. A dozen states now have rules in force.

The American picture is easy to get wrong in the other direction. In 2024 the FDA confirmed that the PFAS grease-proofing agents used in food-contact paper had been phased out of the US market. PFAS is no longer standard in American-made food packaging.

What that phase-out does not cover is imported packaging, and it does not replace the state rules that still govern what you can sell where. There is also no US equivalent of Europe's numerical limit, which means a buyer selling in both markets is working to two different standards at once.

PLA does not solve it

PLA breaks down, but only in industrial composters running hot. Those are rare.

The US has roughly 200 composting sites that accept food-soiled packaging, serving 330 million people. Around 108 of those are listed as able to break down PLA. Twenty states have between one and three sites. Ten have none.

Europe has more than 3,400 composting plants, but they are built for garden and food waste. Accepting kitchen scraps is not the same as fully breaking down a PLA-lined cup.

Sending PLA to a biogas plant instead does not work either. Studies show it barely degrades in those conditions. In one, PLA bottles did not break down at all.

And PLA that ends up in a recycling bin causes a second problem. It looks like PET to sorting equipment, does not get separated out reliably, and lowers the quality of the recycled plastic it contaminates.

What the price per unit hides

Most buyers compare two cents against four.

That comparison leaves out reformulating under a deadline with no grace period. It leaves out testing and documentation at parts-per-billion levels. It leaves out loads rejected at recyclers, and a second compliance gate arriving in 2030.

None of it shows up on this order. All of it shows up in the next three years.

Where natural polymer coatings sit

A seaweed-based coating contains no PFAS, so there is nothing for the new limits to measure. It runs through existing paper recycling streams. It needs no separate composting network to reach end of life.

That is a narrower claim than "sustainable packaging". It is also the one that matters. Buyers are not looking for a better story. They are looking for a material that passes a test.

Natural Polymer vs Aqueous vs PE: The Real Comparison


Features
Natural Polymer Coated
Aqueous Coating
PE Coated Products
Use of agricultural / non-renewable resources
No (marine biomass)
Yes
Yes (fossil fuel)
Recyclability and repulpability
Fully recyclable and repulpable
Disrupts recycling of paper
Difficult to recycle, not repulpable
OGR and OTR barrier
High
High
High
EU, India and US compliant
Yes (certified)
Not in all regions
Not in all regions
End-of-life disposal
Recyclable and biodegradable
Industrial composting / landfill
Different streams, not organised
Compostability
Home compostable (certified)
Industrial only
Not compostable
Cost competitiveness
Competitive
Competitive
Highly competitive
Scalability for mass production
Proven scalable
Scalable
Scalable
canyon beneath the stars

A seaweed-based coating contains no PFAS, so there is nothing for the new limits to measure. It runs through existing paper recycling streams. It needs no separate composting network to reach end of life.

canyon beneath the stars

A seaweed-based coating contains no PFAS, so there is nothing for the new limits to measure. It runs through existing paper recycling streams. It needs no separate composting network to reach end of life.

Summary

EU limits on PFAS in food packaging took effect on 12 August 2026, with no grace period for existing stock, and a far broader restriction covering around 14,000 substances now sits with the European Commission. PLA is not the way out. The composting infrastructure it depends on barely exists, it fails in biogas, and it contaminates PET recycling. Recyclability rules from 2030 will then decide what can be sold at all. Natural polymer coatings avoid all three problems: no PFAS to measure, compatible with existing paper recycling, and no separate composting network required.

PFAS in food packaging

PLA Recycling

Natural Polymers

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