l'm cooking for Pesach and I accidentally used an ingredient that isn't certified kosher for Pesach.

I was just baking a coule for PES and I realized that the oil I was using was not certified kosher for Passover is this a problem or not so first thing you should do really is call the OU depending on the case the ouu often has information about the product and they can tell you that it's not a problem at all or maybe it is a significant problem if this happened before PES there's much more leniency than if it happened on pesak the difference is that before pesak there is a concept of kit being nullified in 60 Parts on PES there's no nullification whatsoever for so if there's any bit even if one little tiny ingredient in there is it can make the entire product uh problematic however if it happen before PES then there is B There is nullification and obviously one should not be doing that but AC if it happened by accident then the food is acceptable on PES