Bac-Out™ Stain & Odor Eliminator contains more strains of live enzyme producing cultures for multiple uses. Bac-Out™ continues producing enzymes that attack organic waste and odors until they are gone, digesting them back into nature safely and naturally. Food grade lime extract helps eliminate the toughest stains and odors such as: pet stains & odors, diapers, coffee, tea, berries, chocolate, ink, grease, oil, drains (prevent clogs) and garbage disposals.