Multilayer program: the addition of a plastic movie was step one to produce brick containers impermeable to liquids and warmth-sealable. In the nineteen sixties, an aluminum foil started to be additional for the cardboard container to ensure much better protection and lengthen the shelf life of the packaged product. This https://durablegabletop.blogspot.com/2025/02/gable-top-milk-revolutionary-packaging.html