This liner bag is built for vinegar in bag-in-box and refill formats, using a food-contact grade PE inner film with optional PE/EVOH/PE barrier or mono-PE recyclable construction depending on shelf-life and recycling targets. Standard capacities run from 1 L to 20 L, with 10 L as a practical reference for catering and industrial vinegar; custom widths, fitments and film thickness can be engineered. The liner is intended for liquid filling through a butterfly valve or screw-cap spout, then packed into corrugated or reusable outer boxes. For acidic products such as vinegar, we select film and weld parameters around the buyer’s pH, filling temperature and distribution profile, and we can discuss EU food-contact documentation during sampling.
Filling-line fit is central to the design: we can supply butterfly valve, screw-cap and aseptic-style spout options for semi-automatic and automatic bag-in-box fillers, with spout placement, cap torque and seal geometry checked during sampling. Printing is available by 10-colour rotogravure on the liner film or outer packaging, with unprinted food-contact surfaces, low-ink options and artwork checks for fill marks, fitment clearance and EU label requirements. Typical MOQ is 10,000 pcs per size and design; plain or printed prototypes are usually produced in 5–7 working days after artwork approval. Pilot runs help verify seal strength, valve function and filling-line speed before scale-up, so vinegar producers can confirm performance before committing to production volumes.
For German and EU buyers, this vinegar liner is positioned around practical recyclability: mono-PE structures where product protection allows, reduced material thickness, and outer packaging designed for fibre recovery. PPWR-aligned projects can be reviewed against your EPR and recyclability criteria, with final suitability depending on barrier, shelf-life and filling tests. Our Dongguan factory operates a 15,000 m² clean workshop with 10-colour rotogravure, spout pouch, bag-in-box and roll film capabilities. Each quotation can specify film structure, fitment, printing, MOQ, sampling and lead time, helping procurement teams compare total packaging cost rather than unit price alone.
