Bishul Akum for Products

Hello!

I notice that the rabbanim on this forum are not concerned about bishul akum for packaged products. Why is this the case? I’m assuming the Rav has a Teshuva about that or has taught his sons/grandsons as to why. Can you point me in the right direction? Thanks!

This would require a lengthy answer, but as general overview, the Rav holds, that just as there is a leniency regarding bread when it is made by a faceless company, so to any product made by such an entity does not fall under the decree of bishul akum