Those machines cost $10-$30k, and require cleaning every few hours (minimum wage, only significant skill is the diligence to do it) and maintenance every few da

Those machines cost $10-$30k, and require cleaning every few hours (minimum wage, only significant skill is the diligence to do it) and maintenance every few days or weeks by a steam plumber. The operator/button pusher is a little bit like a flight attendant: most days here to get you your drinks—but every once in a while, here to notice steam coming from the wrong place and take the machine out of service.