How do you keep something cold while traveling?

Keep the food at 40 degrees F or colder. Pack your cooler with several inches of ice or use frozen gel-packs, frozen juice boxes or frozen water bottles. Block ice keeps longer than ice cubes. Use clean, empty milk or water jugs to pre-freeze blocks of ice.



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If the food you're traveling with needs to stay at refrigerator temperatures, pack it in a cooler that can be counted as checked luggage. For longer flights, or times when you suspect there may be delays, consider freezing the item you're flying with, especially if it's a meat, casserole, or soup.

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Put Dishes on Ice For bowls, you can add a couple cubes to a larger bowl and place your smaller serving bowl inside. For plates and platters, add ice to a clean plastic or metal tub and place your dish on top. This will keep everything super cold, and won't take up too much additional space on your table.

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Keep the food at 40 degrees F or colder. Pack your cooler with several inches of ice or use frozen gel-packs, frozen juice boxes or frozen water bottles. Block ice keeps longer than ice cubes. Use clean, empty milk or water jugs to pre-freeze blocks of ice.

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If you are traveling with perishable foods, place them in a cooler with ice or freezer packs. Have plenty of ice or frozen gel packs on hand before starting to pack the food. If you are bringing perishable foods along to eat while traveling, or to cook at your destination, plan to keep everything on ice in your cooler.

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You are allowed to bring a quart-sized bag of liquids, aerosols, gels, creams and pastes through the checkpoint. These are limited to 3.4 ounces (100 milliliters) or less per item. This is also known as the 3-1-1 liquids rule.

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But hang on, because it turns out most hotel mini fridges are pretty middle-of-the-road, too. In July, Lifehacker reported that most of the mini fridges you find in hotel rooms wouldn't pass a health inspection test, as they are often left at a temperature too high to properly store food.

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