Solid food almost always clears security: sandwiches, snacks, fruit, cheese and baked goods all fly in a carry-on. Anything spreadable or pourable, including yogurt, hummus, peanut butter and soup, is a liquid to TSA and must fit the 3.4 ounce rule.The second question is customs. Fresh fruit, meat and dairy that fly fine within the US are often seized on arrival abroad, and the same applies coming home. Each item page below gives the security verdict for carry-on and checked bags, then the international note that decides whether it survives the border.