Originally Posted by zpaul

Good distinction; thank you. I was thinking only of the peanut dust. Smelling peanut butter usually won't be a problem, except psychologically. We tend to get away from the smell of peanuts in any form as fast as we can!

I was once on Delta in F and the lady seated next to me brought an Asian chicken salad on board with a heavy peanut sauce. Luckily she wanted to eat while we were still at the gate, so I just stood outside the door on the jetway while she finished. I wouldn't have had an anaphylactic reaction, but it was enough to make me uncomfortable.