Above clearing table, glass rack is placed in an ankle.
The service empties the glasses into the sink or a bucket and then place the emptied glasses in to the above glass rack upside down. One glass rack one kind of glasses.
When the glass rack is full the steward will remove the rack and replace by an empty glass rack.
If separate glass washing machine the steward will the full gals rack in the glass washing machine.
If only one washing machine the glass should not be washed in the same water as the plate, because it is more difficult to polish the glasses.
If only one washing machine, empty the water completely out of the machine, rinse the machine inside and clean the filters.
Refill the dishwashing machine with clean water and wash all the glasses. Change the water after every 15 racks, all depending of how dirty the glasses is.
If separated washing machine for glass only, the same account for the amount of washed racks before change the water, rinse the machine and refill with clean water.