Multilayer process: the addition of a plastic film was the first step to generate brick containers impermeable to liquids and heat-sealable. During the 1960s, an aluminum foil started to be additional to the cardboard container to ensure far better safety and increase the shelf lifetime of the packaged products. The https://gabletopcontainers.food.blog/2024/10/29/the-rise-of-gable-top-packaging-in-sustainable-solutions/