Still, this milk must be boiled before consumption for full safety and longer storage. What is tetra pack milk? Tetra pack milk, however, undergoes Ultra High-Temperature (UHT) processing.

Tetra Pak’s UHT technology and aseptic packaging technology has changed this over the years and given access to fresh milk by eliminating the need for a cold chain during distribution.

Food inside Tetra ... Pak cartons do not require preservatives, whether it is milk, juices or any other liquid food. Carton milk, for example, is sterilized by a special technique called UHT ...