Except for the weight, I would prefer milk, and other drinks, came in glass bottles.
The article claims that the micro plastics were in the milk from the start, not from the containers the milk or cheese were packaged in.
Indeed. Milk in cardboard tastes better.
Exposure of milk to UV light facilitates the oxidation of fats to aldehydes, and the degradation of sulfur-containing amino acids, both of which contribute to off-flavors. In addition, vitamin A and riboflavin are easily degraded by UV light. These reactions occur rapidly and are exacerbated by bright fluorescent lights in retail dairy cases. The invention of white light-emitting diodes (LED) may provide a solution to this oxidation problem. - https://www.sciencedirect.com/science/article/pii/S0022030216001351