Most people out there do not know how to use this product properly. My ex tenant used this stuff and he would add it to the wash cycle and still use fabric softener defeating the entire purpose of this " sanitizer". I had to inform him on how to use it since A) He didn't even read the bottle instructions B) had no clue that was the way it was supposed to be used and was clutching the pearls when I mentioned the correct usage. C) He threw everything in the dryer and barbecued every load so there was absolutely no need to even spend the money. D) he was a First Class Idiot....I dont miss that crap. At. All.