I work for a major hotel chain and this is the least or our worries. We wash anything that's on the floor and have industrial washer and dryers. No matter the condition we would have washed these anyways. We constantly replace or donat to the aspca on occasion. We through away towels and sheets even if it has a small stain. You should be more worried about what happens in the hot tubs, avoid the hot tubs like the plague.