Aseptic bag-in-box (BIB) is a multilayer, high-barrier flexible package for liquids and semi-liquids—such as milk and plant milks, juices and nectars, fruit concentrates, sauces and syrups, soy/fish sauce, and edible oils. When filled on aseptic equipment in a sterile environment, the package protects against oxygen, light, and microbial ingress to maintain flavor, nutrition, and color stability without refrigeration. Designed to be placed inside a protective carton for transport and dispensing.

Why Choose Our Aseptic BIB Solution

• Shelf-stable distribution at ambient temperature when aseptically filled correctly.

• High barrier to oxygen and light to slow oxidation, off-flavors, and color loss.

• Robust seals and abuse resistance to minimize leaks during handling and logistics.

• Lightweight, stackable system that reduces freight and warehousing costs.

Advantages of aseptic bags

Extended shelf life

Bacteria & oxygen barrier

Preserves flavor

Load-bearing & leak-resistant

Logistics savings

Automation-ready

Wide range of specifications

Recyclable

Advantages of aseptic bags

Extended shelf life

Logistics savings

Bacteria & oxygen barrier

Automation ready

Preserves flavor

Wide range of specifications

Load-bearing & leak-resistant

Environmentally friendly

Capacities & Common Dimensions (Customizable)

• Nominal volumes: 1 L, 2.5 L, 3 L, 5 L, 10–20 L (others on request).

• Typical flat sizes (W × H): 19 × 30 cm (~2.5–3 L), 22 × 32 cm (~3–5 L), 30 × 40 cm (~10 L).

• Film thickness and layer ratios are tailored to product viscosity, solids, and shelf-life goals.

Laminate Structures & Barrier Options (Aseptic-grade)

• PET / EVOH / PE – PET for mechanical strength and scuff resistance; EVOH for oxygen/odor barrier; PE as the food-contact heat-seal layer.

• PET / Al foil / PE – Continuous aluminum foil for full light barrier and maximum O₂ protection (light-sensitive products, premium juices, oils, syrups).

• PA / EVOH / PE – PA (nylon) adds puncture resistance for handling stresses; EVOH provides gas barrier; PE seals tightly.

• PET / PA / EVOH / PE – Adds PA for enhanced pressure/impact resistance in larger formats and long routes.

• PET / Al foil / PA / PE – Foil plus PA for the highest combined light barrier and mechanical robustness.
  Final laminate and thickness are recommended case-by-case based on product chemistry (pH, salt/sugar), fill temperature, and distribution.

Fitments & Closures

• Options include aseptic spouts/valves, screw caps, or fully heat-sealed bags for single-use opening.

• Fitment selection matches your filling and dispensing method; tamper-evidence and reclosability available.

Aseptic Filling & Line Compatibility

• Compatible with standard aseptic BIB fillers using sterilized bags, sterile product, and sterile environment.

• Heat-seal performance and film slip (COF) are tuned for reliable forming, filling, and sealing at production speeds.

• Bags are designed for smooth insertion into cartons and stable web handling.

Applications

• UHT/aseptically processed milk and plant milks, juices and nectars, concentrates, culinary sauces and syrups, edible oils, fermented sauces (e.g., soy/fish sauce).

• Suitable for foodservice, retail BIB, and industrial intermediates.

Operational & Logistics Advantages

• Leak-resistant construction and high seal strength to withstand distribution.

• High cube efficiency versus rigid containers; lower transportation emissions per liter.

• Dispensing-friendly when paired with matched taps/fitments in the carton.

Quality & Validation

• Materials are food-contact compliant; seals and laminations are validated for abusive handling and drop tendencies typical of BIB supply chains.

• Recommended customer validation: on-line aseptic trials, post-fill integrity (seal strength, micro-leak), and barrier checks (OTR/WVTR vs. target shelf life).

Ordering Process (B2B)

1. Share requirements: product type and viscosity, target volume, shelf-life goal, filling/dispense method, logistics route.

2. Technical proposal: laminate structure, total thickness, fitment, and carton interface.

3. Quotation & samples: detailed pricing by volume/fitment/MOQ; samples for line trials.

4. Approval → production: artwork (if any), specs lock, manufacturing and QC.

5. Delivery & after-sales: packaging to agreed specs; reorders with retained specifications.

Quick Specs (Summary)

• Volumes: 1–20 L standard; custom options available.

• Common sizes: 19×30, 22×32, 30×40 cm.

• Structures: PET/EVOH/PE; PET/Al/PE; PA/EVOH/PE; PET/PA/EVOH/PE; PET/Al/PA/PE.

• Fitments: aseptic spout, screw cap, or heat-seal (one-time open).

• Use cases: milk and plant milks, juices/nectars, concentrates, sauces/syrups, edible oils, fermented sauces.

FAQ – Aseptic Bag-in-Box (BIB)

1) What volumes and dimensions are available for Aseptic BIB?
Standard volumes 1–20 L. Typical flat sizes (W×H): 19×30 cm (~2.5–3 L), 22×32 cm (~3–5 L), 30×40 cm (~10 L). Custom sizes by request.

2) Which laminate structures are recommended for aseptic liquids?
Common options: PET/EVOH/PE, PET/Al/PE, PA/EVOH/PE, PET/PA/EVOH/PE, PET/Al/PA/PE. Final structure depends on product chemistry, shelf-life, and distribution.

3) Can the aseptic BIB run on existing filling lines?
Yes. Designed for aseptic BIB fillers; COF and heat-seal are tuned for reliable forming, filling, and sealing. Fitments include aseptic spout or screw-cap.

4) What validation is required for ambient shelf life?
Run on-line aseptic trials; verify seal strength, micro-leak, and barrier (OTR/WVTR) against your shelf-life target.

Contact now

Request samples and a structure recommendation. We will map laminate, thickness, and fitment to your product, fill conditions, and distribution route for the lowest total cost per liter.