science

two brands of baby food containers made of polypropylene and one brand of reusable food pouch

These choices aimed to showcase diverse types of baby food packaging

3 brands, two of the same overall declared material, and no reference to manufacturer formulation safety data. If this is an American paper, the FDA requires substances that come into contact with food to be vetted, so the information should exist somewhere if these are legally sold. Which is obviously not guaranteed. This is not giving me much hope for this study.