So we can imagine independent temperature controls but not making all the humidity bearing cavities UV-exposed?
The dis-infection problem would be trivially solved (relatively) by adding a very powerful UV light and ensuring it hit all the relevant surfaces. 20 minutes of that and nothing would be left alive.
UV actually doesn't penetrate grease very well. At least that's the story we told each other in the dinosaur decades when our eprom erasers wouldn't erase a chip in time, well, wipe that quartz window with solvent and try again.
Aside from someone who doesn't know anything about UV finding a way to bypass the interlocks and blinding themselves.
As a cooking technique I wonder if you could do anything interesting with strong UV. Literally bleach color from the surface of something. Could you bleach the surface of an angelfood cake to be pasty white yet baked? Might take a higher than sane UV flux for an impractically long time...
Another weird idea: Refrigerator UV bulb. Not entirely insane, well, probably. At least in the raw produce drawer.
The dis-infection problem would be trivially solved (relatively) by adding a very powerful UV light and ensuring it hit all the relevant surfaces. 20 minutes of that and nothing would be left alive.