How do you keep milk cold on a long flight?

Tools to Keep Dairy Foods Cold for Lunch and Traveling Bags with a gel lining keeps milk, yogurt, and other dairy foods cool throughout the day if you freeze them overnight. Or use a bag with a thermal lining that simply reflects the cool temperature of the food back into the bag. For best results, toss in an ice pack.



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Ice packs in a well-insulated cooler bag will typically remain cold for around 24 hours—and if the ice packs and your milk are both frozen, everything may stay cold for longer than that. But if you have flight cancelations or delays that take your travel time beyond a full day, you may need to toss your milk.

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1) Cold milk in a thermos or insulated bottle If your trip is fairly short and you can keep regular milk somewhat cold in a thermos or bottle, this is probably your best bet. TSA agents are often able to screen the milk by itself easily just by opening and testing the container.

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TSA officers may need to test the liquids for explosives or concealed prohibited items. Although not required, to expedite the screening process, it is recommended that formula and breast milk be transported in clear, translucent bottles and not plastic bags or pouches.

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You are also allowed to take bottles or cartons of prepared milk or sterilised water in your hand luggage. Because you can take as much as you like, pack plenty to cover any possible delays. Airport security may ask you to open the containers and taste the contents.

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Baby food, milk and water are allowed. Containers can be over 3.4oz, but put them in a separate bin for x-ray screening. More: tsa.gov/travel/special…

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You're allowed to carry freezer bags, ice packs, and gel packs to keep your breast milk frozen, but they need to be frozen solid. If they're slushy or partially melted, they may be subjected to additional screening. If there's any liquid in them, they're held to the liquid rule of 3.4 ounces or less.

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Can I pack liquids in my checked bag? Yes, liquids in containers larger than 3.4 ounces must be packed in checked luggage. There is no limit to the amount of non-alcoholic liquid that can be brought, but too many full-size bottles can exceed the maximum weight limit for your luggage.

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Traveling with Dr. Brown's Bottles
  1. For short trips: Use the included travel disk and keep the bottle upright.
  2. For longer trips: Remove the parts, collar, and nipple from the bottle and screw on a travel cap.
  3. For air travel: Changes in pressurization can affect the internal vent system and cause bottle contents to leak.


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