Multilayer Process: the addition of the plastic film was step one to produce brick containers impermeable to liquids and heat-sealable. Within the 1960s, an aluminum foil began to be extra to your cardboard container to guarantee superior defense and lengthen the shelf life of the packaged product. Taking this idea https://eco-friendlygabletopforoils.blogspot.com/2025/02/gable-top-milk-revolutionary-packaging.html