What makes liner suitable for liquid food products? The answer lies in the details. Different contents, filling methods and storage conditions require packaging solutions tailored to specific needs. From material selection and barrier properties to processing, numerous factors must be considered to ensure that the liner reliably protects the product while integrating seamlessly into industrial processes.

The Right Barrier for Sensitive Products

Liquid food products such as juice, wine, beer and syrup react differently to external influences. Oxygen can trigger oxidation, affecting taste, colour and aroma. Light exposure and the loss of volatile aroma compounds can also compromise product quality.

The choice of plastic liner therefore depends on the characteristics of the product and the requirements for storage and transport. Depending on the application, different film types, thicknesses and multilayer material structures may be used. These allow mechanical properties and barrier performance to be precisely tailored to the specific requirements.

“A suitable liner must do more than safely contain the product. What matters is that the material and design are precisely matched to the product’s requirements and the associated filling and emptying processes,” explains Carsten Natzan (Head of Engineering at Natzan Packaging).

Customised Designs for Efficient Operations

Beyond material selection, the design of the liner plays a decisive role in the practicality of a packaging solution. Dimensions, folds, filling openings and discharge outlets must be compatible with the respective container and technical processes.

Whether for Bag-in-Box systems, multilayer Intermediate Bulk Containers (IBCs) or aluminium composite liners, customised liners facilitate installation, filling and emptying. Appropriate geometry and the optimal positioning of connections can help reduce product residues and improve operational efficiency.

Specific requirements can also be accommodated, including light-protective materials, multilayer film structures and suitable connections for aseptic processes. The most appropriate design always depends on the specific application and its technical requirements.

Food Contact Compliance and Process Reliability

For plastic liners used with liquid food products, suitability for the intended food contact is just as important as functionality. Compliance with the EU Framework Regulation (EC) No. 1935/2004 and Plastics Regulation (EU) No. 10/2011 forms the basis for the food-contact-compliant manufacture of our products. We focus on using suitable materials, meeting applicable migration limits and ensuring full traceability.

Controlled manufacturing processes and a systematic quality management approach support process reliability and ensure consistently high quality standards. Certifications to DIN EN ISO 9001 and BRCGS further demonstrate our commitment to structured processes, quality and product safety.

Tailor-Made Liners for Liquid Food Products

Natzan Packaging develops and manufactures plastic liners for a wide range of liquid food products and industrial applications. From selecting the film structure and defining custom dimensions to determining connections and design details, we consider all relevant requirements together.

The result is packaging solutions that help protect products while being tailored to the processes involved in production, storage, transport and discharge.

For more information about our liners for liquid food products and our customised packaging solutions, visit our landing page for liners for liquid food products.

We would be delighted to discuss your product, process and potential packaging designs with you in person. Meet us at BrauBeviale from 10–12 November 2026, or book an appointment directly with one of our consultants.