> I've worked in such kitchens in the past and there wasn't any material change in how I digest food or how sick I get, so I would suspect it's not as terrible

> I've worked in such kitchens in the past and there wasn't any material change in how I digest food or how sick I get, so I would suspect it's not as terrible as it sounds. MrBuddyCasino has linked the paper in a comment next to mine. I don't know enough to decide the credibility of the science itself, but that is the one people are referring to. The only thing I want to add is that it is not a danger for people working with the machine, but for the people eating from the plates cleaned by such machine. And in addition the concern is that the chemical used by the commercial machines cause chronic issues in some people after repeated exposure. Clearly if everyone who eats at a commercial kitchen would get immediately sick that would be very easy to detect. You don't need scientist to tell you that. So instead of thinking in black and white think in probabilities. The proposed mechanism is that some people (who were either pre-disposed genetically, or got a larger amount of the chemicals for some reason, or both) gets sick after a longer amount of time. > What does it mean for the gut barrier to be destroyed? Chronic inflamation disease.