affresh® Dishwasher Cleaner helps eliminate odour that can come from trapped food & residue. Whirlpool Canada recommends cleaning your dishwasher monthly or as needed for a cleaner, fresher appliance. The use of affresh® Dishwasher cleaner, which is septic-safe, can help ensure optimal performance and reduce mineral deposits that may occur as a result of the recent reduction of phosphates in dishwasher detergents.