Available in the market since 1968, Tetra Brik® Aseptic cartons are so versatile and cost-effective, they satisfy a great variety of liquid food packaging needs such as convenience, safety and practicality. The Tetra Brik Aseptic carton provides many months of unrefrigerated shelf life to beverages and liquid foods such as milk. Tetra Brik Aseptic comes in four different formats: Base, Mid, Square and Slim. They contain volumes ranging from on-the-go portion packages suitable for even the tiniest hand to family-size cartons of 100 ml - 1500 ml, and come with either perforation or resealable caps so that they are easy to open.