✒️ Printing inks in food?
Yes you heard right, it’s possible for printing inks from food packaging to end up in your food, as many studies have shown.
Migration of printing inks into food mainly occurs through three different pathways:
1️⃣ Inks used to print on the outside of a packaging can seep through materials with low permeability such as paper and board.
2️⃣ When items such as cups are stacked within each other and the outer printed layer from one cup comes into contact with the inner layer of another cup, a process called set-off migration can take place.
3️⃣ Recycled paper and board used to make food packaging can be contaminated with printing inks from non-food contact articles like newspapers or magazines that contain unsafe printing inks.
☝️ Many different substances can be used in printing inks (the Swiss positive list contains over 5,000 different chemicals!), and they were identified to have the most food contact chemicals of concern (more than any other type of food contact material).