[jonnycomputer]

Back in college i spent a year working part-time as a dishwasher for the school cafeteria. That amounted to me using a high-pressure sprayer to pre-clean some of the dishes and utensils (watch out spraying those ladles though!), and then putting them on a conveyor belt that would wash and dry them very quickly. Much like this one:

https://www.youtube.com/watch?v=HCM13eOWVgY

[red-iron-pine]

Same idea as every restaurant I've worked at, though some were smaller.

But yeah basically high pressure hose + conveyor belt.

The dishwasher's job was mostly to scrape and spray everything beforehand, pull forks out of the trash, etc. Some glassware had to be done by hand, too.

You're supposed to let the dishes cool before using, but in practice they went out almost immediately. Could cause problems if they were chilled rapidly, hot glasses used for sodas with ice, etc.