we still don't know how are you offering the meal? are you at least presenting the room or are you just offering it to him?
i'm not trying to sound like a hard a$$, im just trying to help you out so don't take this the wrong way but if you can answer all the questions with data instead of opinions someone one here will definitely be able to tell you what is going on. some people come onto the forums and say things like " my temps and humidity are bang on " when in actuality it was the problem the hole time.
john