Choosing the Right Bag-in-Box Packaging for Your Product: A Complete Guide

Date: 03/07/2025
Category: Guides

Bag-in-box packaging is an increasingly popular, efficient, and sustainable choice across many industries—from wine and dairy to post-mix beverages, liquid egg, and aseptic products, there are so many options available – how do you select the right bag-in-box packaging to perfectly suit your product and application?

milk and cookies bag in box

At Peak Packaging UK, we have a wealth of experience providing tailored bag-in-box solutions to businesses across the UK, Europe, and beyond. Here’s a comprehensive guide to help you choose the perfect bag-in-box packaging for your needs.

Understand Your Product’s Requirements

Different liquids have different packaging needs. Consider these key factors:

Product type: Is your product acidic like wine, sensitive like dairy, or aseptic like bio-products?
Shelf life: Does your product require a strong oxygen barrier to stay fresh longer?
Viscosity: Is the liquid thick or thin? This impacts the bag design and fitment selection.

Choose the Right Bag Size

Bag-in-box packaging ranges from 1 litre to 25 litres at Peak Packaging UK. Select the size that aligns with your product volume, storage, and distribution needs. Larger bags are ideal for industrial or bulk use, while smaller bags suit retail or sample sizes.

Select the Appropriate Barrier Film

Barrier films protect your product from oxygen, moisture, and contamination. Common options include:

Metallised PET (Met-PET): Offers high oxygen barrier properties, ideal for wine and post-mix applications.
EVOH: Provides superior oxygen and aroma protection, perfect for dairy and aseptic products.
PE films: Offer durability and flexibility for various liquid types especially for fast moving products or non-oxygen sensitive products.

Your choice directly impacts shelf life and product quality.

Fitments Matter

Fitments such as valves, spouts, glands, and caps control how your product is dispensed and preserved. At Peak Packaging UK, we supply and manufacture a wide range of fitments, ensuring quality and compatibility with your filling and dispensing equipment.

Easy-flow spouts: Suitable for viscous liquids like liquid egg.
Tamper-evident caps: Add security and consumer confidence.
Custom valves: Maintain freshness and prevent leaks.

Ensure Filling and Dispensing Compatibility

Your bag-in-box packaging must integrate smoothly with your existing filling line and dispensing systems. We collaborate closely with clients to deliver liners and fitments designed for seamless operation, reducing downtime and product wastage.

Consider Sustainability and Cost

Bag-in-box packaging offers significant environmental benefits, including reduced plastic use and lower transportation emissions. Choosing recyclable or biodegradable films can further enhance your product’s eco-friendly credentials without compromising protection.

Certification and Compliance

All Peak Packaging UK liners and fitments meet BRCGS, FDA / IMS standards, ensuring food safety and regulatory compliance for direct food contact packaging.

Why Partner with Peak Packaging UK?

Over 30 years of packaging expertise
Extensive range of bags, fitments, and barrier films
Bespoke solutions tailored to your product and industry
Strong focus on quality, testing, and certification

Ready to Find the Perfect Bag-in-Box Packaging?

Contact Peak Packaging UK today for expert advice, samples, and personalised packaging solutions designed to protect your product and enhance your brand.