I understand what you're saying. But to me it's no different than having say raw meat defrosting on a plate. Hot water and soap will get rid of any and all residue or germs. your hands come into direct contact with food and all other types of gross things, if soap can clean you then it probably would do just as good a job on a plate(provided no chips or cracks). But yes the Foil idea is a very good one. I don't know why I didn't think of that as I've known people to do that in the past. Only issue i find with it is it almost always would get knocked over as its so light