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3-1-1 guides
Practical guidance about 3-1-1, with relevant airline rules, restrictions, and packing decisions in one place.
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Can You Bring Contact Lenses on a Plane?
Contact lenses and solution rules for carry-on bags, the 3-1-1 liquid rule for solution, and practical tips for flying with contacts.
Can You Bring Guacamole on a Plane?
Guacamole counts as a gel under TSA rules. Here's what size passes through carry-on security and what to do with full containers.
Can You Bring Hummus on a Plane?
Hummus counts as a liquid under TSA 3-1-1 rules. Containers 100ml or less fit in carry-on; larger tubs must go in checked luggage.
Can You Bring Salad Dressing on a Plane?
Salad dressing counts as a liquid under TSA rules. Bottles over 100ml must go in checked luggage. Single-serve packets and dry mixes are fine.
Can You Bring Soy Sauce on a Plane?
Soy sauce is a liquid under TSA rules. Small bottles under 100ml pass through carry-on. Full bottles must go in checked luggage. Here's what fits.
TSA-Approved Carry-On Toiletries: Full Checklist 2026
Complete list of TSA-approved toiletries for carry-on bags. What passes security, what fails, and how to build the perfect 1-litre quart bag.