Food and detergent residues can redeposit on dishes, glasses and silverware during your dishwasher's rinse cycle, causing spots and film to form and remain. Finish Jet-Dry Rinse Aid provides superior spot, film and residue protection vs. dishwasher detergent alone delivering sparkling dishes with every wash load. Simply fill your rinse aid dispenser with Finish Jet-Dry Rinse Aid and you're done. Finish Jet-Dry Rinse Aid will be released automatically in your dishwasher's rinse cycle and works by lowering the surface tension of water and causing a sheeting action on your dishes, glasses and utensils. This results in better rinsing, which means fewer spots, less film, and an unbelievable, sparkling clean shine.