Mineral Deposits

• If you have hard water, chances are that you are seeing mineral deposits on your dishes. Hard water contains concentrated amount of minerals such as calcium and magnesium. When the dishes are dried with the heated dry cycle, the deposits remain behind on the dishes. Adding a water softener to each load of dishes will prevent the white spots from forming. A rinsing agent will also help to remove the deposits from the dishes. You can purchase both items at your local grocery store in the kitchen detergent aisle.
  
  

Too Much Detergent

• Adding too much detergent to your dishwasher can etch the glassware. When glassware becomes etched, it will contain small scratches that can make them appear cloudy. Etching frequently occurs when you combine softened water with an excess amount of dishwasher detergent. Reduce the amount of detergent that you use to help prevent etching. Remove your glassware after the wash cycle because the heat can encourage the etching. Dry the glassware with a soft cloth.
  
  

Water Temperature

• Check the water temperature before you clean a load of dishes. If the temperature remains too hot or too cold, water spots may occur. Turn the hot water on in your sink and allow it to run for two minutes. Place a thermometer under the water for one minute. The water temperature must remain close to 140 degrees Fahrenheit. Adjust the temperature on your hot water tank by consulting the manufacturer directions. You may need to replace your hot water tank if the water remains too cold.
  
  

Phosphate Detergent

• Detergents high in phosphates can cause spotting on dishes, especially if the water temperature remains too high. Phosphates such as sodium and potassium are added to detergents to help clean the dishes more effectively. Read your detergent to determine if it contains phosphates. Replace the detergent with a phosphate-free detergent to see if it helps to reduce the white film that you see on the dishes. Phosphate-free detergents are also better for the environment.