John,
There's quite a few of us who allow some Tennessee windage to our places of domicile, real names, etc. Once burned, twice shy. It's probably best to accept that.
One of the things I learned from a dear friend who was an emergency room doctor in Munich for many years:
1) Antisepsis is a goal to be sought, but never achieved.
2) You remove the gross dirt first, then you go for the pathogens.
She is one of the very few Germans I know who believes in chlorine based disinfectants. She doesn't for one second think 40º washing (that's degrees science, not the weird stuff the Americans use) is adequate for a family with seven children and she tumble drys underclothes, bedclothes, towels, Waschlappen, etc. at high heat.
Big fan of Sagrotan, too - and the US equivalent to that is Lysol. Also a big fan of letting little kids play in the dirt.
Personally, I will continue to run the dishwasher on the NSF approved 'sanitize' cycle (it's not really, but it's all about knocking the microbe load down as low as possible), using chlorine bleach and high tumble heat. I get rid of the gross dirt with TSP (the horror of it all, and, gosh, that STTP most are using? Guess what it turned into a while back...) and real hot water, not the <span style="font-size: 12pt;">40</span><span style="font-size: 12pt;">º stuff US manufacturers want us to call 'hot' today.</span>