PEF beverage bottles enter functional shot packaging with Avantium, Gepack and Frubaça

Avantium is extending the application field of its plant-based PEF material into a compact and fast-growing drink format: functional beverage shots.

The Dutch renewable polymer company is working with Gepack and Frubaça to evaluate small PEF bottles for shot-based beverages. The project uses Avantium’s PEF, marketed as releaf®, and brings together bottle production, beverage filling and material performance testing in one value-chain collaboration.

Why this matters for beverage packaging

Functional shots are small, concentrated drinks often positioned around health, energy, immunity or wellness. Their packaging needs to protect flavour, freshness and product quality while remaining practical for high-volume filling and distribution.

That is where PEF is being tested. Avantium describes PEF as a high-performance, plant-based and recyclable polymer designed to offer improved barrier performance compared with conventional fossil-based plastics. In beverage packaging, stronger barrier properties can help protect sensitive products from oxygen and aroma loss, which is particularly relevant for juices and functional drinks.

A value-chain test, not just a material trial

The collaboration is structured across the full packaging chain.

Gepack, a Portugal-based producer of PET bottles, is manufacturing the bottles. Frubaça, a Portuguese producer of fresh juices and functional beverages, is filling them for use in shot applications. Avantium provides the PEF material platform through releaf®.

This makes the project more than a laboratory demonstration. The partners are assessing how PEF performs through bottle production, filling and real beverage-packaging conditions. The goal is to validate processing, product protection, shelf-life potential and environmental performance in a practical commercial format.

PEF moves closer to real beverage applications

The project also fits into a broader commercial push for releaf® in beverage packaging.

Earlier in June, Hoogesteger signed a capacity reservation agreement with Avantium for future releaf® volumes, building on an earlier offtake agreement. Avantium said that capacity reservations for releaf® have now exceeded 100 kilotonnes, pointing to growing interest in future industrial-scale PEF supply.

For beverage companies, this is important because sustainable packaging materials need more than technical promise. They require bottle converters, fillers, brand owners and supply commitments to move from pilot projects to scalable adoption. PEF beverage bottles

Sustainability and performance remain linked

Avantium has also recently published an updated life cycle assessment for releaf®, reporting significantly lower greenhouse gas emissions for PEF beverage bottle applications compared with conventional PET under representative European conditions.

However, the key challenge for PEF is not only carbon footprint. For beverage packaging, the material also needs to prove that it can run through existing or adapted production systems, meet food-contact requirements, protect product quality and fit into circular packaging strategies.

That is why small-format bottles are a useful test case. Functional shots are compact, brand-driven and performance-sensitive. If PEF can demonstrate reliable behaviour in this format, it could support wider interest in plant-based recyclable packaging for juices, smoothies and other premium beverage categories.

What the partners say

Gepack’s R&D team sees the collaboration as a way to evaluate whether new materials can be integrated into existing bottle production processes. Avantium, meanwhile, highlights the importance of testing PEF across the full value chain and in real packaging applications.

The message is clear: renewable polymers will only gain traction if they work not only in theory, but also in the machinery, filling lines and product categories already used by the packaging industry.

Outlook

The Avantium, Gepack and Frubaça project shows how PEF beverage bottles are moving from material innovation toward practical packaging validation.

For the beverage sector, the trial could help clarify whether plant-based recyclable polymers can support both sustainability targets and demanding product-protection requirements. For PEF, it is another step toward proving that releaf® can serve real applications in bottles, packaging and other consumer-facing formats.

As brands look for packaging that combines lower fossil dependence, recyclability and product performance, small PEF bottles for functional shots may become an important test bed for the next phase of bio-based beverage packaging.

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