[eru]

> Any crap left on the plate will get spread on everything else, so you have to pre-wash everything first. You should really do it at home too, [...]

Why? If I have to wash my own dishes, that would defeat the point of a dishwasher..

[Tor3]

You don't have to wash the dishes first. Just rinse them under the tap before you put them into the dishwasher. I'm assuming you don't let the dishes pile up before you do that - if you do, you'll get dry dirty plates and 'ware and then yes you would essentially need to wash them by hand. I always rinsed my plates before putting them into the dishwasher (when I had one), it took all of a few seconds. I hate the gunk piling up in the filter, and I definitely felt that the dishes didn't come out as clean as I wanted either, unless I hand-rinsed first.

[eru]

Compare https://www.youtube.com/watch?v=_rBO8neWw04

[carlosjobim]

You'll have to clean that stuff out of your dish washer otherwise.

[falcolas]

Not really. It’s ground up and goes down the drain with the waste water.

The Technology Connections YouTube channel has some nice, in-depth looks at dishwashers and soap.

[eru]

> Not really. It’s ground up and goes down the drain with the waste water.

It depends. What you describe is common with American dishwashers. European dishwashers typically don't grind anything up, they just collect it in a sieve.

[Merad]

If you buy a dishwasher with that feature. It's not standard. I know because my parents went cheap on their last dishwasher purchase because "they're all the same." About two years later I got to help troubleshoot why their dishwasher wouldn't get anything clean... the bottom of it was basically a solid layer of rotten food particles.

[eru]

That's less work than pre-washing all the dishes.