Cutting Milk Carton’s Carbon Footprint

Tetra pak, milk carton, sustainability, recyclable, packaging

Following successful commercial consumer testing in 2022, Tetra Pak and Lactogal have launched an aseptic beverage carton featuring a paper-based barrier. This is part of a large-scale technology validation involving around 25 million packages and is ongoing in Portugal. Made of approximately 80 percent paperboard, the package increases the renewable content to 90 percent, reduces its carbon footprint by one-third (33 percent) and has been certified as Carbon Neutral by the Carbon Trust.

Greenhouse gas emissions, food waste and plastic littering are cited as the top three environmental sustainability concerns facing food and beverage (F&B) businesses today, and this is expected to remain the case over the next five years. Packaging solutions like these, which expand the amount of paper and lower the carbon footprint while ensuring food safety, can help the industry overcome these challenges.

In 2015, Tetra Pak was the first to introduce a package made entirely from plant-based renewable materials - paperboard and sugarcane-based plastic. The Tetra Rex Plant-based package, suitable for cold chain distribution, is fully renewable, and the company has delivered approximately 6.5 billion of these packages to customers worldwide to date.

The launch of the Tetra Brik Aseptic 200 Slim Leaf carton with a paper-based barrier and Lactogal provides a package that can be distributed under ambient conditions while hitting the 90 percent renewable content mark. This brings Tetra Pak one step closer to its ambition of a beverage carton made solely from responsibly sourced renewable or recycled materials that are fully recyclable and carbon neutral. The company is aiming for industrial-scale production of the solution by 2025.

José Capela, President of Lactogal, said that this collaboration with Tetra Pak centred on a shared belief that a more sustainable future is possible.

“Innovating together is a big part of that,” said Capela.

Capela continued that the two businesses are focused on an ambitious sustainability transformation. This new carton’s 33 percent reduction in greenhouse gas emissions and its Carbon Neutral certification by the Carbon Trust were significant achievements towards this goal.

Ola Elmqvist, Executive Vice President of Packaging Solutions at Tetra Pak, said that the development represented a critical marker in its longstanding work to design beverage cartons for recycling, which is continuing to set the pace for the paperisation of packaging.

“By joining forces with Lactogal, we’re now demonstrating that it’s possible to progress the sustainability of aseptic beverage cartons while securing food safety and enhancing food access,” said Elmqvist.

In 2022, together with its industry partners in the Alliance for Beverage Cartons and the Environment (ACE), Tetra Pak jointly adopted Design for Recyclability guidelines for beverage cartons, which provide technical guidance for optimised recycling of this type of packaging. More recently, the 4evergreen alliance added beverage packaging design guidance to its fibre-based circularity toolset. 4evergreen is a cross-industry platform that aims to boost the contribution of fibre-based packaging in a circular and sustainable economy, with Tetra Pak amongst its founding members. Their updated Circularity by Design Guideline covers fibre-based composite packaging types (including beverage cartons) and informs designers on their compatibility with specialised recycling processes.