Microwave

Question

I still don't understand. If I cook a meat liquid (chicken soup) and forget to cover it, I gather from what you have written that the walls have now absorbed the meat taste. So if I cook milk in the microwave an hour later (where there is no more smoke from the soup in it) is the milk treif? If the dairy product doesn't touch the surface of the microwave, can it absorb the taste? Please clarify.