Finish® Dishwasher Cleaner provides 100% better cleaning and works by safely & effectively breaking down and removing limescale and grease build-up inside your dishwashing machine, including hidden and vital parts of the machine, like the heating element and sprayer arms. Use your Finish® Dishwasher Cleaner once a month for optimal results and for a fresh and clean dishwasher. To use, remove the sticker from the top of the Finish® Dishwasher Cleaner bottle, place the bottle upside down in the bottom dish rack and then run your dishwasher empty on the hottest cycle. Finish® is the #1 Recommended Brand* *Finish® is the most recommended detergent worldwide, based on the global market share of the dishwashing manufacturers that recommend Finish®