Boy, do I need your guys help here. I have been bombarded with all kinds of answers outside of IFSQN about what is the most effective sanitizer for Listeria ? I'm in a dairy facility. One says Quats, the others says chlorine, others says iodine and so on. What is the most effective sanitizer to use for listeria, salmonella and so on ? Targeted area - Drains / Floors.