[hendiatris]

This isn’t a big deal. You should probably be more concerned about the pesticides. These machines do dealcoholization, remove volatile acidity (vinegar), alter acidity (done with ion exchange, as opposed to adding tartaric acid directly to the wine). Yeah, there are probably some negative side effects as a result of these techniques, but I'd bet big that they are vast improvements over the alternatives and that the negative effects are dwarfed by those of pesticides

[phyzome]

Ah, I should be clear, I'm not on board with most synthetic pesticides either. I was referring to just the additional list of electrical fields, etc.