This 5–20 l liner bag is built for sauerkraut brine in bulk food operations, where salt, acidity and aroma need a reliable flexible barrier. The standard food-contact grade structure is PET/VMPET/PE, combining printability, light and moisture barrier, and a PE sealant for strong spout and seam welds. For EU buyers reviewing PPWR-aligned packaging, we can also evaluate mono-PE or PE/EVOH options against the required shelf life, filling temperature and handling conditions. The liner can be supplied with welded spouts or valve fitments for bag-in-box, drum or IBC-style systems. Capacity, film thickness and fitment position are confirmed against your filling line, closure torque and transport test requirements before production.
Printing is handled by 10-colour rotogravure on suitable film webs, allowing German and EU brand owners to carry batch codes, fill-volume marks, recycling guidance and multilingual product information in sharp, consistent artwork. We recommend sharing dielines, artwork files and target fill volume early so the spout position, seal width and print repeat are aligned with your liner bag equipment. Filling can be organised around spout-fill or open-top methods, with hot-fill or ambient conditions reviewed for the brine recipe, closure type and downstream storage. Sampling is central to the process: we provide plain or printed samples for fitment checks, leak testing and filling-line trials before final approval. MOQ is typically 5,000 pieces per SKU, with lower quantities discussed for structural trials.
Every liner bag is specified around the practical demands of sauerkraut brine: resistance to salt and acidity at the seal interface, robust spout welding, and a film structure that protects aroma while supporting safe handling. We can quote PET/VMPET/PE as the baseline, or review alternative food-contact grade structures where EU recyclability targets, mono-material preferences or filling temperatures require a different balance. Lead time is normally 15–25 working days after artwork and sample approval, depending on film availability, print complexity and fitment stock. Please send your capacity, spout or valve drawing, filling method, target shelf life and artwork brief so we can confirm the structure, sampling plan and production schedule for your German or EU project.
