Re:Study finds link between 'forever chemicals' in cookware ...
by coryrc on Friday August 12, 2022 @11:32PM
(#32446640)
And, for the cans, it then cures in place. The BPA is like a catalyst and doesn't bind with the material, which is what allows it to leach out so well.
Polyethylene, in addition to being a safer molecule, uses catalysts which don't end up in the final product, which means you can't be exposed to them.
Tetrapaks are laminated, meaning that various layers of solid materials are glued together. Think of it as a sticker on something.
For cans, the epoxy is a liquid coating that's applied by spraying or roller coating, more like paint.