24 Nov 2020 --- Switzerland-based packaging equipment manufacturer Markem Imaje is releasing a thermochromic ink for food packaging, which the company says offers a more noticeable color change to indicate proper sterilization of food products. Designed for retort sterilization of filled cans or plastic pouches, the ink – branded MS596 – changes from black to blue when the food package reaches the correct temperature between 115 and 125°C.
