What water temperature is required for best dishwashing results?

Water must be at least 120°F (49°C) as it enters the dishwasher for best results. To check, run hot water at the nearest faucet for at least 1 minute and measure with a candy or meat thermometer. If the temperature is below 120°F (49°C), have a qualified person raise the water heater's thermostat setting. (Page 11)