ricotta is fine if cooked, so it feta, must be heated over 60 degrees.

I personally wouldn't eat it if not cooked even the packaged stuff, that's just me though, cooked is fine.

I don't think I could cope without my pastizzi and ravul.(maltese food) I just make sure they are really well cooked leave them for a few mins extra just to be sure!

HTH
...Laura