BaginBox

Bag-in-box (BiB) is a packaging system for liquids that places a flexible inner bag inside a rigid outer carton, typically made of corrugated cardboard, with an integral dispensing tap. The inner bag is usually made from multi-layer polymer films that provide a barrier to oxygen and light. The outer box protects the contents, supports stacking, and facilitates transport.

In use, the beverage is filled into the sealed inner bag at the point of production. When the box is opened, the user dispenses through the tap. As the bag empties, it collapses, which minimizes air contact and helps preserve freshness after opening. The packaging is designed for a given volume, commonly in sizes such as 1 to 3 liters for consumer products, with larger formats used for commercial or hospitality applications.

BiB is widely associated with wine and is also used for other beverages such as juice, specialty drinks, and some oils or liquid foods in bulk or on-tap settings. Its appeal includes reduced packaging weight and volume, potential cost savings in shipping and handling, and convenient dispensing. The system is also seen as enabling longer shelf life after opening compared to some conventional packaging.

Environmental and recycling considerations vary by material and region. The outer box is generally recyclable, while the inner bag’s recyclability depends on the film materials and local facilities. Recycling programs may require separation of components or specialized streams, and the overall environmental impact depends on factors such as transport, product stability, and end-of-life processing.