Sometimes when jelly or jams go bad there is a white mold that can grow pretty quickly if the seal on the jar was imperfect, jars used were not sterilized, or if there was too little sugar used in process. If that is in fact mold, you need to toss it.
Sometimes when jelly or jams go bad there is a white mold that can grow pretty quickly if the seal on the jar was imperfect, jars used were not sterilized, or if there was too little sugar used in process. If that is in fact mold, you need to toss it.