OK - it's Friday and am having a nice day in the quiet home office so decided to run the test.
Here's the pics:
Test Group:
In the dishwasher:
After:
And the verdict is:
* Why bother?
* Only the Stella body label and the Oettinger label came off.
* Deuchars didn't budge but looks clean and shiny. Asahi barely budged. Groslch unmoved. Hoegaarden lifted a little bit.
* Labels were in one piece on the floor of the dishwasher and no gunk in the filter.
Recommendations:
* Don't do it if you have a dishwasher with an exposed heating element (F&P, etc). Labels will get stuck to it and probably get rather well toasted or burnt.
* Check the filter out after. It may have paper waste in it.
* Bottle cleanliness? Externally OK. Insides aren't too bad either.
For my money, I think it would be cheaper and easier to fill the laundry tub or bath tub with bottles, add hot water and some Morning Fresh and have some fun (hah!) with a scraper and stainless steel wool.
Insert disclaimer here: If you're silly enough to do this, you should evaluate the risks first. You do it by your own decision and at your own risk.
Have fun! And now I'm going to have a beer while I finish up this week's work.
Cheers - Fermented.