08-17-2025 Laundry detergent pods, encapsulated in dissolvable films containing liquid detergent, are treated as liquids by TSA. They must comply with the 3-1-1 rule for carry-on bags, which often makes them impractical to carry on planes. While allowed in checked luggage without size restrictions, careful packaging is necessary to prevent leaks and damage during air travel. Travelers should consider alternatives or proper packing to ensure hassle-free trips.