There are ingredients in dishwasher cleaners that are designed to specifically get rid of buildup and deposits within the machine. Among them are limescale, hard water stains, rust, grease, and grime leftover from food preparation. When a dishwasher cleaner is mixed with water, it cleans dishes by picking up food residue. Cleaner formulas contain enzymes that break down starchy proteins in food particles. The builder compounds remove the calcium and magnesium ions from hard water. In addition, some safe bleaches should also be available for removing stubborn stains. When a dishwasher cycle is complete, the detergent tablet or other detergent will be released from the dispenser at the optimum time. During this process, the dishwasher cleaner will dissolve, and the ingredients will be released to combat staining and clean your dirty dishes as well as the interior of the dishwasher.