Why do they even make that an option?
My KitchenAid dishwasher is a pretty good dishwasher. I can say without a doubt that it is the best dishwashing machine that I've ever owned or had access to. Kinda knock the dried stuff loose on the dishes before loading it, put in one of those AWESOME Cascade Action Pack soap pods*, make sure the reservoir is topped with Dollar General brand rinse aid**, and my dishes come out shiny and clean and new-looking. I never have to re-run the dishes through in such instances.
That is, unless...
...Unless someone has selected the buttons to turn OFF the High Temp Scrub and Sani Rinse. Then, your dishwasher is running with whatever hot water it gets IMMEDIATELY upon turning on the water valve (it doesn't let it run til it gets hot), with the soap, and that's it. Unless your dishwasher is way different from every one that I've ever seen, it has three things going for it, to get your dishes clean: Hot water, pressure, and soap. It has no scrubbing brushes. If it did, then it could do as well you do when handwashing. Truth is, your dishwasher can get that water a lot hotter than your hands could bear, if you'll let it. And therein is its efficacy.
In the bottom of your dishwasher is a heating element. If you select "High Temp Scrub" (as it's listed on my washer), it heats that element up while the washer is filling with the wash water for washing, and runs that heating element for the whole time that it washes, to get the water really really hot. Thus, it can get those dishes super uber clean. If you select Sani Rinse, then your washer will run the heating element during the whole time that your dishwasher is rinsing your dishes, to get that rinse water hot enough to sanitize. If you select "Heat Dry", then your washer will run the heating element for a while after the rinse water is drained away, to evaporate the rinse water faster.
So here's the problem: My wife NEVER turns on these options. She turns them all off. Why? Because she's a worrier. Wives will do that; they'll worry about getting screwed over again, like when they bought into that whole "I'll bet that he'll look distinguished as he ages, and will eventually grow out of this whole 'let's work for the public and make Jack for money' thing that he's got going on" philosophy. Oh, no. She won't be fooled again. Now, she's Miz Cautious. She's not running the risk of a repeat of
Which leads to Suck and Fail.
I have to admit: I do a lot more dishes than I used to, just to get the damned things run correctly. Maybe that was her plan all along.
*Worth every dime. We came across some packages marked down, but I'll get these from now on, even if I have to pay double. No more powder caking up, clogging up the spring-loaded door flap to the soap dispenser. I don't care if these things cost triple what I've been paying. It's a good product.
**I never used to use rinse aid, but I have to admit that it makes a difference, and the store brand seems to work just as well as Jet Dri or Crystal or whatever. A bottle usually lasts me several months. The reservoir takes about a month to drain.