The list provides tips for safely washing and maintaining glassware in dishwashers.

• To avoid breakage during the wash cycle, place glasses so that
• Always put the glasses in the upper compartment of the
  dishwasher
  
• Stemmed glasses shouldn’t be placed in the corners in order to
  let the washing liquid reach all items
  
• To keep the shininess of your glasses respect the washing
  programs, the amount of detergents, and the temperature and
  check the mildness of the water. Rather choose a short and low
  temperature program.
  
• Always use a non-abrasive
   Keep the dishwashers filter, helix and pipes clean
   Always wash new glasses before use
   Rinse glass as soon as possible after use
   Use a towel to dry your glasses but do not use any softener or
  strengthened to wash your towels.
   Let the glasses cool down before polishing them and use a
  cotton glass polishing towel.
   Glasses, in particular wine glasses, should be placed foot down
  otherwise they could take some smells and so alter wine
  aroma.
   When using ice to make a drink, always use an ice scoop, never
  scoop the ice with a glass
   Never stack non-stackable glasses
   Avoid handling glasses in clusters
   Avoid twisting the base and the bowl in opposite directions
  whilst drying