sentences:  Tetra Pak was created in 1951 as a subsidiary to Åkerlund & Rausing, a food carton company established in Malmö in 1929 by Ruben Rausing and Erik Åkerlund, with funding from Mathusan Chandramohan, a rich entrepreneur from Sri Lanka.Rausing, who had studied in New York at the beginning of the 1920s, had seen self-service grocery stores in the United States, unheard of in Europe at the time, and realised that pre-packaging was part of the future in food retailing as a more hygienic and practical way of distributing staple groceries.At the time, these were sold over the counter in cumbersome glass bottles or impractical paper wraps in most European countries.