Reply To: Are you allowed to buy cut up fruits in a non jewish store?

Depends how it is prepared. In case the knife is used for fish, meat, or other such products then it is certainly not permissible. I recall the fish store in my old neighborhood was owned by a gentile. He has a special knife for kosher fish and that is where we, along with many other families, bought fish from. But IMHO you have got to do a thorough investigation before buying from such a store.