How do you remove dishwasher bloom off drinking glasses?

According to the book Talking Dirty with the Queen of Clean by Linda Cobb, fill the dishwasher with your glasses (no metal), and place a bowl with 1 cup of bleach in the bottom of the dishwasher. Run through the wash cycle, but do not dry. Next, put 1 cup white vinegar in the bowl and run through the entire cycle. This should clean the dishwasher as well as the glasses. Hope this helps.

The damage to the glasses may not be a simple one of deposits or staining in which case the above may not work. Bloom can also (and in my belief, more likely) be caused by etching of the glass by the detergent. In this case the bloom can be removed by polishing the glass with jewellers' rouge or if that is not to hand by using a metal polish like Brasso. This can take quite a while but it works.