I washed my Pareve knife in the Milchig dishwasher. Soap in the first cycle. Is it still Pareve? If not, can it be Kashered back to Pareve?
If the soap mixes with the water before the hot water rinses the dishes, then it does not need to be Kashered. If this is not the case (this depends on which model dish washer you have), and there is a form of a rinse before the soap mixes, then you need to Kasher the knife. You may Kasher from Milchig to Pareve.