A clean dishwasher equals clean dishes. Dishwasher Magic - Removes mineral build-up and disinfects your dishwasher Kills e-coli & salmonella bacteria Eliminates food stains and odors Removes rust & calcium build-up that can clog water jets Safe for all dishwaser model interiors and plumbing and septic systems. Use Dishwasher Magic once a month to disinfect, ensure optimal cleaning and to prevent build up.