In a wine bag in box packaging, a plastic bag filled with liquid is placed in a stable corrugated cardboard box. The bag is then connected to a faucet operated from the outside of the box and expels the amount of beverage individually determined by the consumer. Bags are usually made of composite foil materials, such as polyethylene and aluminum. As they empty, they contract, preventing contact with oxygen. The traditional wine bag in box packaging is square; however, it can also be cylindrical, and wine bag in box packaging typically sells for 3 to 10 liters.

The wine bag in box packaging is good in every way. This format is low in manufacturing and shipping costs, light in weight, and easy to store. In addition, it is recyclable or even reusable and keeps the content fresh long after it is opened. It is said that the taste experience is the same as a bottle of wine.

The popularity of wine bag in box packaging varies around the world. In 2018, the global share of boxed wine in world trade was just 2 percent. Broken down by volume, their share is 4 percent. Boxed wines are becoming more and more popular, especially in the North. Here, sales are up 8.5% in just one year. By 2015, nearly every five liters of wine sold in the United States will be in a box, usually a three-liter box. At $4 to $5 per 750ml, boxed wine costs almost half as much as bottled wine of the same content.