Q. Several readers called or wrote to say they're still confused about what they can take on airplanes in the wake of travel restrictions that started this month in the U.S. The questions included: Are barbecue sauce and frozen poi allowed in checked luggage?

A. The federal Transportation Security Administration is not allowing most liquids, aerosols or gels in carryon baggage — including bottled water, shampoo, and toothpaste — and other items of similar consistency. Even yogurt, pudding or Jell-O.

But Honolulu TSA customer support manager Allen Willey said most foods are OK in checked luggage. Oddly, the folks at the checkpoint will take away your bottled water or coffee, even though at most airports you can buy identical beverages a few feet past the checkpoint. At the jetway, airline officials will have you throw them away when you board your plane.

Willey said he knows the beverage policy can be somewhat puzzling. He suggests: "When in doubt, put it in checked baggage."

Q. My diabetic supplies need to be kept chilled. I usually fly with gel packs in my carryon. What can I do?

A. Officials will allow medicine, including insulin and other diabetic supplies, and baby formula and breast milk if a baby is traveling. Willey said patients with medicine that needs to be refrigerated should make sure the label says that. If it does, then gel packs can be used.

One reader passed on a suggestion: Use bags of frozen peas or corn as a substitute for gel packs. That has been effective with seafood but also could work with lei, medicine or other foods.

You can find out the latest on the Web at www.tsa.gov, including tips and a full list of prohibited items and details on food, make-up and medication.

Willey said you can also call a toll-free number (866) 289-9673. That number starts with general information but also can connect callers with more specific information.

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