BASF launches innovative thermoplastic polyamide for eco-friendly sausage casings

GERMANY – Chemical giant BASF has unveiled Ultramid H33 L, the world’s first thermoplastic polyamide with a high water permeability, designed specifically for artificial sausage casings. 

The material enables sausages to undergo smoking and drying processes while maintaining structural integrity. 

It combines high strength with excellent water permeability, allowing for thinner casings compared to conventional options made from collagen or cellulose.

The introduction marks a shift in food packaging technology, offering producers a durable alternative that supports efficient manufacturing. 

According to Dr. Rolf Minkwitz, who oversees polyamide product development at BASF, the material expands possibilities for thermoplastics in food applications. 

He stated that Ultramid H can be processed like standard polyamides, so customers can integrate it into existing production lines without modifications.

Key features include hydrophilic properties that permit smoke aromas to penetrate the casing during processing and facilitate drying directly within the material. 

This reduces handling steps and potential waste in sausage production. BASF developed the product to meet demands for sustainable solutions in the meat industry, where thinner walls mean less material use overall.

Earlier this year, BASF partnered with Südpack to introduce thermoformed packaging using Ultramid Ccycled, a recycled polyamide variant for meat and sausage products. 

This packaging qualifies as recyclable in the polyethylene film stream under German standards and supports mechanical recycling through dual systems. 

The collaboration demonstrates BASF’s ongoing efforts to enhance circular economy practices in food packaging.

In a related development, BASF secured US$2.3 million in funding from the German Federal Ministry of Education and Research last year. 

The grant supports research into improving mechanical recycling of plastics, which directly benefits innovations like Ultramid H33 L by advancing end-of-life processing methods.

Recent industry updates show growing momentum in sustainable food packaging. 

A report from the Sustainable Packaging Coalition highlights that by 2025, reusable and compostable materials have become essential, driven by regulations such as the European Union’s Packaging and Packaging Waste Regulation. 

The law mandates reductions in packaging waste and promotes innovations in fiber-based and biodegradable options for fresh foods, including processed meats like sausages. 

Market analyses indicate the global sustainable food packaging sector is expanding rapidly, with projections for revenues reaching hundreds of millions of dollars through 2034. 

Companies are incorporating smart technologies, such as QR codes for traceability, to optimize recycling and minimize environmental impact. 

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