Ultra High Temperature (UHT) Pasteurization
Completely sterilizes the product. It is used to created "boxes of milk" that you see on the shelf at the grocery store.
In UHT pasteurization, the temperature of the milk is raised to about 285 degrees F (141 degrees C) for one or two seconds, sterilizing the milk. Thereafter the milk is cooled to 7 C or lower. The products have a better keeping quality and longer shelf life.