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Tetra Pak was founded by Ruben Rausing and built on Erik Wallenberg’s innovation, a tetrahedron-shaped plastic-coated paper carton, from which the company name was derived. Rausing produced all sorts of paper packaging for dry staple groceries. By the early 1940s, Rausing began developing dairy packaging that could compete with loose milk. AB Tetra Pak was established in Lund, Sweden, in 1951. In May of that year, the new packaging system was presented to the press, and in 1952, the first filling machine producing 100 ml cream tetrahedrons was delivered to Lundaortens Mejeriförening, a local dairy.
Rausing strove to improve the Tetra Classic system, beset with many technical problems during the 1950s, and spent enormous amounts on development. International expansion had begun in the 1960s, when the first production plant outside of Sweden was established in Mexico in 1960, soon to be followed by another in the United States in 1962. In 1981, Tetra Pak relocated its corporate headquarters to Lausanne, Switzerland, for tax reasons, but retained all research in Lund. As of January 2021, Tetra Pak was operating in over 160 countries through its 29 market companies. Between 2007 and 2010, the company saw growth in emerging markets and opened new plants to meet that demand.
In 2010, Tetra Pak reported a 5. Growth in Asian, Eastern European, and South American markets helped drive the increase. Tetra Pak uses aseptic packaging technology. In aseptic processing the product and the package are sterilized separately and then combined and sealed in a sterile atmosphere, in contrast to canning, where product and package are first combined and then sterilized.