Kvod Harav. A non-Jewish cook intentionally added a non-kosher ingredient to a kosher food pot, and the non-kosher ingredient is actually Bottel Be’shishim – (annulled in sixty parts), is the food permitted? If by his own will after the prohibited item fell in unintentionally, he added more kosher food to make it bottel, knowing from working in a kosher kitchen many years that it would be permitted, is it OK?

As long as the Gentile cook was acting on and for his own and not following any instructions from the supervisors on both cases the food is kosher. Horav A. Miller Shlit’a quoted a similar P’sak from Ba’adei Hashulchan.