Tetra Pak’s paper‑based carton breaks new ground

Tetra Pak, in collaboration with Italian dairy producer Sterilgarda Alimenti, has launched the world’s first 1‑litre aseptic carton featuring a paper‑based barrier, signalling a major advance in the industry’s transition toward low‑carbon, renewable packaging materials.

The innovation, introduced in the Tetra Brik Aseptic 1000 Edge format, increases the carton’s renewable content to 90% when combined with plant‑based polymers — the highest level yet achieved in a package of this type.

Designed for ambient distribution, the new carton delivers shelf life and performance comparable to traditional aseptic packaging that uses aluminium foil as a barrier layer. Crucially for food manufacturers, the shift to a paper‑based barrier reduces the package’s carbon footprint by up to 50%, a figure independently verified by the Carbon Trust. This gives producers a powerful tool for meeting tightening sustainability targets, retailer scorecard requirements and consumer expectations around low‑impact packaging.

For Sterilgarda Alimenti, the launch aligns with its long‑standing commitment to innovation and conscious consumption. Plant director Giampaolo Rossi said the new barrier technology represents “a significant contribution to our journey towards greater sustainability,” highlighting the growing importance of packaging choices in shaping consumer trust and brand reputation.

Tetra Pak sees the development as a critical milestone in its long‑term strategy to create cartons made entirely from renewable or recycled materials. Tatiana Liceti, executive vice president, packaging solutions, described the innovation as “harnessing the power of paper to make beverage cartons more renewable,” emphasising that the breakthrough is the result of close collaboration with customers seeking responsible packaging solutions.

The paper‑based barrier also simplifies the carton’s material structure, reducing it from three to two main materials — paper and polymers. This increased paper content can support recycling infrastructure by improving material recovery and fibre quality, while maintaining the strength and rigidity required to protect aseptic products throughout their lifecycle. For manufacturers, this means a more sustainable package without compromising product protection, line performance or distribution efficiency.

The launch builds on Tetra Pak’s broader investment in next‑generation materials, including a €60 million pilot plant for paper‑based barrier technology in Lund, Sweden. The company plans to invest approximately €100 million annually through to 2030 to accelerate the development of renewable, simplified‑structure cartons.

For food and beverage producers, the collaboration with Sterilgarda demonstrates that commercial‑scale, low‑carbon aseptic packaging is no longer a future ambition but a present‑day reality. As regulatory pressure intensifies and sustainability becomes a core purchasing driver, the new 1‑litre carton offers manufacturers a practical, high‑performance route to reducing environmental impact while maintaining the reliability and shelf stability that aseptic products demand.