As of early 2026, the TSA and international security agencies maintain specific exemptions for "medically necessary liquids" which include baby formula, breast milk, and baby food. Unlike standard liquids, parents can carry these items in quantities exceeding 3.4 ounces (100ml) in their carry-on luggage. This includes liquid formula, expressed breast milk, distilled water for mixing powder, and purée pouches. You are also permitted to bring "solid" baby snacks such as crackers, fruit, and sandwiches. To ensure a smooth screening process, you should inform the TSA officer at the start of the security line and place these items in a separate bin for inspection. Cooling accessories like gel packs or ice packs are also allowed to keep the milk or food fresh, even if the baby is not traveling with you. It is worth noting that while X-ray machines are safe for baby food, you can request a manual inspection if you prefer. Always pack these items so they are easily accessible, as officers may perform additional vapor or trace detection tests on the containers.