Re: Husband traveling with breastmilk The TSA rules are that as long as your liquid is as frozen as a block of ice, it can pass through the TSA screening. The specific wording is: Frozen liquid items are allowed through the checkpoint as long as they are frozen solid when presented for screening.

No, breast milk does not need to be frozen to pass through TSA security in 2026. The TSA classifies breast milk, formula, and toddler drinks as "medically necessary liquids," which means they are exempt from the standard 3.4-ounce (100ml) limit. You can carry "reasonable quantities" of liquid breast milk in your carry-on, even if you are traveling without your child. However, if you use ice packs or gel packs to keep the milk cool, those packs should ideally be frozen solid when you reach the checkpoint. If they are partially melted or "slushy," they are still allowed, but they will be subject to more intensive screening, such as an Explosive Trace Detection (ETD) test. You must inform the TSA officer at the start of the screening process that you have these items, and you should be prepared to remove them from your bag for a separate visual inspection to ensure a smooth and respectful security experience.