We have brought quite a bit of food for breakfasts, snacks, and whatever dinners we plan to eat in on both of our visits to BCV. We have brought peanut butter both times in checked luggage without incident (I had heard peanut butter was a problem and called the airlines before we flew both times to ask about checking it, and everyone I spoke with seemed to think I was crazy for worrying about it). Definitely follow advice to double and triple bag things--both trips we have had a can of shelf-stable apple juice concentrate pop. Double bagging contained the mess, but its off our list for the next trip.