So obviously you flagged the importance of minimising the excess drive voltage as critical to minimise undesired electrochemistry and by-products from the get-go
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I assume this issue (the possibility of the electrolysis interacting with the wort grain-derived compounds and forming all sorts of by-products) is not seen as a problem in the wine industry? (it sounds like it's already being used there(?)).
Additionally, isn't "some peroxide radical formation" an issue, even if those radicals are bound to the electrode? I'm not trying to be picky with this, but it was seen as the condemning issue with using H2O2 - that the peroxide radicals would be producing all sorts of undesirable by-products. While being bound should help minimise this, i'm also assuming they'll remain active radicals until they react with something, and most of the stuff to react with will be the wort compounds.
I've obviously not read/researched any of the background electrochemistry & the devil is really in the detail with this stuff. I'm just seeking a little clarification and explanation on this stuff, partly out of curiosity and partly out of wanting to ensure one of the potential issues can be ticked off.
I'm definitely not trying to shoot down this fantastic idea, and are very keen to see it work (i'm also holding off from O2 options to see how this pans out first).
Cheers