Andy Hall wrote in
:


No, because washing efficiency depends on contact time

Not disagreeing. But there are many commercial dishwashers that use hot
water. Some have a preheating device so that there is ready-heated water
available for the next cycle. This is, of course, to reduce the overall
cycle time and might imply a very heavy electricity supply. They might also
have a more powerful pump, better spray pattern, etc. But are they 'fed' a
different detergent? Considering that pub glass washers can cycle in a few
minutes I suspect that they do - but I am not convinced that it is *that*
different. (Yes - I know that washing a few glasses is different to baked
on stuff - but I don't have first hand experience of other commercial DWs.)

Rod