SIG has launched the first aluminum-layer-free full barrier aseptic carton solution for multi-serve packaging. Building on success in single-serve markets, this innovation simplifies the packaging structure to just two raw materials—over 80% paper and plant-based polymers—reducing carbon emissions by up to 61%. It maintains shelf life and barrier protection without requiring new filling equipment, marking a major milestone in sustainable beverage packaging.
SIG, a global leader in aseptic packaging, has introduced the world’s first aluminum-layer-free full barrier aseptic carton for multi-serve use. This innovation represents a major step toward more sustainable packaging, reducing environmental impact in the food and beverage industry.
The new carton eliminates the traditional aluminum layer, instead relying on over 80% paper content combined with forest-based polymers. This simplified material structure cuts the carbon footprint by up to 61% compared to conventional aseptic cartons that use aluminum foil. Building on the success of their aluminum-free cartons in China’s single-serve market—where over 300 million packs have been sold since 2023—SIG is now expanding this technology to multi-serve beverage categories including dairy, juice, and plant-based drinks, without sacrificing product safety, quality, or shelf life.
A key advantage of this packaging solution is that it can run on existing SIG filling lines without requiring manufacturers to invest in new machinery. Despite removing the aluminum layer, the carton maintains the same high-performance barrier necessary for aseptic processing. This means products stay safe and shelf-stable over long periods without the need for refrigeration or preservatives.
Christoph Wegener, Chief Markets Officer at SIG, highlighted the company’s commitment to sustainability, stating that this innovation is a significant milestone in the transition to aluminum-free aseptic carton packaging. SIG aims to increase the paper content in their cartons to 90% by 2030, reinforcing their dedication to reducing environmental impact.
Gavin Steiner, Chief Technology Officer at SIG, added that this new technology achieves both high performance and sustainability, benefiting manufacturers and the environment alike.
With increasing consumer demand and regulatory pressure for eco-friendly packaging, SIG’s aluminum-free cartons offer a scalable and effective solution. As this technology rolls out globally, it has the potential to reshape industry standards and significantly reduce packaging-related emissions.
