Also, Polly-O mozzarella (before the OU) had Conservative rabbinical hashgacha, and R’ Abadi allowed that because there was a fully automated process in place; i.e. machines poured microbial rennet into the milk, and human hands never handled the cheese-making process.
His sons’ website has the following question:
Message: I called the Mashgiach at the Polly-O company where they make the Polly-O Mozzerella Cheese. He told me all the ingredients that go into the cheese are either Chaf-K or O-U, but that Polly-O didn’t want to spend more money on putting the O-U on the package for their Mozzerella cheeses. He is a conservative Rabbi, but he said he’s very strict when it comes to Kashrut. Do you know anything about this?
Reply: Cheese needs full-time supervision.
AA
And a followup:
Message: I actually just spoke with the Rabbi that supervises it. He said it’s a completely automated process and human hands do not touch the food at all. Again, he stressed the Kashrut of the ingredients.
I do understand what you are saying, however and I appreciate your clearing up this matter for me.
Have a very happy Passover.
Reply: Interesting Rabbi. Did he forget to check the laws in the Shulchan Aruch?
Chag Sameach.
AA