Dishwasher can be in high temp. or lower temp. The difference between this two type of dishwasher because high temp use 82C or higher temp. to kill the bacterica while the low temp use sanitizer to kill the bacterica. Both type go by cycle of approx 52 sec and use fixed volume of chemical and water.
Glass washer designed to wash beer glass and the rinse water keep on running in with sanitzer when the turn-table or conveyer is running. The beer glass have to be manually brushed with chemical water then go through the dishwasher for sanitizer only. The rinse water flow back to the wash tank but will go away when over flow. I guess the wash temp is low because too much rinse water go back to the wash tank even the heater in the wash tank keep working.
According to the information above, running cost of a glass washer is higher that a dish washer. As well, glass washer got lower cleaning and sanitizing standard.
I will eat in those place where they use proper way of cleaning chemical and sanitizer.
I found a "canteen" on 1/F on Westminster Hwy in Richmond (bottle depot on the ground floor) using a glass washer to wash the tea mug and cups leaving unexpected "stuff" . I can see that their boss hired enough hands to do run th business but they might not have proper idea how to clean the cook/eat wares
Mc Donald's meal are relatively less expensive than Cha Chan Tang but
they are much more care about customer's concerns, in term of
cleaningness and safety. Most MD's washrooms are cleaner, and
all MD's kitchens are cleaner than typical Cha Chan Tang. The outbreaks
of food hazard percentage are way lower, I can only recall 1 shut down
by Health Inspector due to lack of hot water for washing. Cha Chan Tang,
especially the Honolulu and California Cafe, Kam Do etc. multiple times
Since most glasswares are to be used cold, even frozen for beer glass;
they can be re-used right after washing, while the High temp sanitized at
82 C for 12 seconds. You put ice cubes in it it and it shatters.
Ironically, the rate of health hazard violation are much higher at the Chinese
owned restaurants, not necessary Cha Chan Tang, the Sushi restaurants
are the most risky.
I wrote at the beginning that it is a sanitation issue, not picking at the
CCTs. Let's try Dr. JJ's high-end Hong Kong style Cha Chan Tang
In term of speed, some Low-Temp dish-washer boast that they would wash
60 trays per hour. What they do not tell you is the fact that it usually takes
40 minutes to dry. If you want some drying aid, then another $200/ 4 gallon pail,
that would be good for 80 trays. Is there any restaurant kitchen that provide
the space for 60 30"x30" trays dripping wet dishes?