Sprinkle three tablespoons or a small packet of a lemon- or orange-drink powder (such as Tang, Kool-Aid or Crystal Light) inside your empty dishwasher or fill the dishwasher’s soap dispenser. Run the empty dishwasher for a full normal wash-and-rinse cycle. Any powdery drink mix that contains citric acid will remove gunk, lime and rust stains as well as odors.
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