Lesson 28 : Food packaging material – potential contaminants from food packaging material
Taint and odour
While paper and board materials may transmit taint or odour to a food, plastics have a much greater potential to do this. This is probably the compound usually responsible when consumers detect a 'plastic taste' in a food.
However most food packaging is printed and a number of the components of the ink may cause unpleasant flavours in food if manufacture of the packaging material is not carefully controlled.
It should be remembered that many common plastics are not effective barriers to strong odours. This can often be a problem when storing food in the refrigerator. Odours from food such as garlic or onion can easily pass through plastic film and taint other food.