If there are many molds and black spots on the bacon, it is best not to eat them, because even if the moldy thread on the bacon is washed away, the toxins produced by the molds in the bacon will not be washed away, and eating them will lead to diarrhea or food poisoning. If there is not much mold on the bacon, only a part of it has mold, you can remove the mold and rinse the remaining bacon with hot water.