If you’ve flown in the last decade or so, you’re familiar with the TSA rules for liquids, but some liquids are important and cannot be neatly fit into these categories. They include:
- liquid nutrition like juice, formula or breast milk for really small passengers or those with medical conditions
- life-supporting liquids such as blood products, transplant organs, and bone marrow
- items used to augment the body such as prosthetic breasts, shells containing gels, and saline solutions
- frozen or gel liquids used to cool said medical items used by persons with medical conditions
Luckily, the TSA has a system for travelers with disabilities and medical conditions to get these items through security. (Baby formula and breast milk are classified medically necessary liquids.)Â Any liquid or gel that is medically necessary can be allowed through the security checkpoint after being screened. Â See the instructions for approving these items.
Parents are allowed to bring gel- or liquid-filled teething devices, along with canned or jarred baby food as well. Of course, the TSA requests that you travel with only so much formula, milk, juice and food as needed to get to your destination, but as many parents know this can be difficult to estimate and if a delay occurs, you could be in a tough spot.  You can read more about the TSA’s recommendations for traveling with children for additional information.
