However, one drawback to the thick towels is that if they are not laid out flat to dry on the towel racks, they can get an awful water rot smell. To get out the smell, I lay the towels in the sun for a day or two. Then I wash them in the hottest water possible with 1 cup of vinegar. This has never failed to take out the smell and restore my towels to their splendor. This trick also works with jeans or other clothes that have gotten the water rot smell.