Other than the gouda that we buy to bring home, and anything packed in a checked bag, we always plan on throwing away any food that we don't actually consume on the plane before we land on US soil. On our last trip coming home, we were on the early morning AA flight. We washed out a to-go box that we had gotten with some leftovers, and packed boiled eggs, cheese, grapes, nuts, baguette, etc. in it and had it on the plane. What we didn't eat, we threw away on the plane. It worked beautifully!