Dishwasher - Removing Spots or Film from Glassware or Tub
To remove spots and film from stainless steel, plastic, or hybrid interior tubs, try a vinegar rinse. This also removes spots or film from glassware and dishes.
Remove all metal dishes and metal utensils (including silverware and silver dishes).
Do not add detergent.
Select a longer wash cycle, like Potscrubber or Pots & Pans.
Start the dishwasher and allow it to run for 15 to 20 minutes (the dishwasher will now be in the main wash).
Open the door and pour 2 cups (500 ml) of white vinegar into the bottom of the dishwasher.
Close the door and allow the dishwasher to complete the cycle.
To remove white film on glassware, dishware and the interior, see Dishwasher - White Film On Glassware, Dishware and the Interior.
View a short video about white film on glassware/dishes: