4. WashSet washer to a gentle setting, warm water cycle. Add single scoop of Odor Blasters Versatile Stain & Odor Remover to the washer along with your detergent before inserting the comforter or duvet insert. If your washing machine has extra rinse and extra spin cycles, select these. If your washer doesn’t have these cycles, run it through a rinse and spin cycle again, without soap.