Rinse Aid
Rinse-cycle additive that reduces spotting and speeds drying.
Guides and calculators
Rinse AidBest Rinse Aid for Hard Water
Five rinse aids compared on what each brand's own page says about hard water, from a plain use statement to a named mineral binder. Our pick and the gaps.
Rinse AidWhat a Lab Study Found About Rinse Aid and the Gut Lining
A 2023 lab study found rinse aid, not detergent, damaged gut lining cells at professional dishwasher concentrations. What it showed and what it did not.
Rinse AidWhat Rinse Aid Does, and Whether You Need It
Rinse aid lowers water's surface tension so it sheets off dishes instead of beading, which is what actually prevents spots and film, not the detergent.