Ensuring that medicines are not exposed to potentially damaging heat is critical. Amid the COVID-19 pandemic, the need to secure the pharma supply chain is even more important, as the Pfizer and Moderna vaccinations must be stored at sub-zero temperatures. Color-changing materials presented as inks can play a significant role here. These specialized inks can show if the temperature range has been exceeded. This is an area that Temptime has been involved in for the past three decades. Founded i...