You quoted 'I still care' in your post, not me.
Sorry. Fat Fingers.
Upon reflection, doesn't this whole thing remind you of the Fairy Tale Princess who could feel a pea under 17 mattresses? For crying out loud, most dishes are covered when cooked to prevent splatter, so where is the "defilement" except in the users' minds? Must the workplace be pork-free? What about discriminating noses being "offended" by the aroma? Religious foppery, IMHO.
I suspect that if the situation was reversed, the Christian or Jewish employer would be FORCED to get another microwave.