For the transport of small quantities of milk, purchased at the dairy or from the farmer, sufficient to satisfy daily consumption, metal buckets with lids of variable capacity (0.5 l, 1 l, 2 l, etc.) and generally graduated were used.
With the advent of pasteurization and the spread of hygienic prescriptions for the treatment of foodstuffs, retail sales were made with 1-liter glass bottles, which, however, presented numerous inconveniences (transport, cleaning, etc.). In the 60s and 70s of the twentieth century, milk began to be marketed in disposable pyramid-shaped (tetrahedral) containers, designed by Tetra Pak which, over the course of the following decade, developed a more effective package, not dissimilar to the one still marketed today.