UHT Milk 1.0 INTRODUCTION Thermal processing is the most prevalent preservation process employed in the dairy and food industry. Starting from pasteurization, which is a mild heat processing technology, Ultra-high-temperature (UHT) processing, a relatively new processing know-how, which uses very high temperature (140oC) for short time (2s) has emerged as an important thermal processing system. Such a time-temperature combination ensures minimal changes in the product quality. UHT sterilized milk is then packaged in sterile container under aseptic conditions to prevent post-processing contamination. The product thus obtained has very long storage life. 2.0 UHT Milk UHT milk can be defined as a product obtained by heating milk in a continuous flow to a temperature between 135-150oC for 1-5 seconds and immediately packaging in sterile packages under aseptic conditions. In India, UHT milk is generally processed at 140oC for 2 seconds. 2.1 Theoretical Basis for UHT Processing ...