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SIG has introduced an innovative 1-litre aseptic carton pack that eliminates the aluminium layer traditionally used in such packaging. This innovation, known as SIG Terra Alu-free + Full barrier, is now available, marking an advancement in sustainable packaging practices.

The new carton packs are designed to provide full barrier protection without the environmental drawbacks associated with aluminium.

By transitioning to a packaging material composed of over 80% paper, SIG aims to reduce the carbon footprint of its multi-serve cartons by up to 61% when combined with forest-based polymers. This move not only addresses consumer demand for more sustainable packaging but also aligns with stricter environmental regulations across Europe.

Key features include:

Aluminium-free design: The material replaces the aluminium layer with an ultra-thin polymer coating that safeguards against oxygen, light, moisture and aroma loss, ensuring product integrity for up to 12 months.

Sustainability impact: The reduction of raw materials from three to two simplifies the recycling process, requiring only the separation of paperboard and polymers. This change is expected to streamline recycling efforts and enhance the overall sustainability of aseptic carton disposal.

Rapid transition for manufacturers: The new packaging solution is compatible with existing SIG filling lines, allowing manufacturers to switch between aluminium-free and standard materials with minimal adjustments. This plug-and-play capability is particularly appealing for brands looking to adopt more sustainable practices without significant capital investment.

Aldi has already adopted this packaging, launching a grape juice under its Rio d'oro brand in select regions of Germany. This partnership underscores the growing trend among retailers to seek sustainable packaging solutions that resonate with environmentally conscious consumers.

José Matthijsse, president and general manager for Europe at SIG, highlighted the company's commitment to sustainability. “Our goal is to increase the paper content in our aseptic cartons to at least 90% by 2030. This breakthrough innovation not only reduces carbon emissions but also contributes to a regenerative food packaging system,” he said.

Since its initial foray into aluminium-free packaging in 2010, SIG has sold over 4 billion packs, demonstrating a strong market demand for sustainable options.