monitor the freshness of packaged milk. This study aimed to develop a micro-perforation-
based external TTI label that is cost-effective, efficient and on-time activation. To understand
the spoilage of milk, various quality parameters at storage conditions, 4±1, 27±2 and 37±4°
C, were evaluated. The E a of the developed TTI was co-related with the E a of spoiled
packaged milk. An activated TTI label was sticked on the milk packet to check its …