TSA item rule · verified 2026-07-02
Can you bring peanut butter on a plane?
TSA's official answer, checked against tsa.gov on 2026-07-02.
Carry-on bag limits apply
TSA treats peanut butter as a paste — containers over 3.4 oz (100 ml) can't go through the checkpoint. Travel-size jars in your quart bag are fine.
Checked bag yes
Full-size jars go in checked bags.
Liquids, gels and aerosols in carry-on follow the TSA 3-1-1 rule. The final decision always rests with the TSA officer at the checkpoint.
Source: TSA — What Can I Bring? · checked 2026-07-02
Related: food snacks
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Common questions
Can you bring peanut butter in a carry-on?
TSA treats peanut butter as a paste — containers over 3.4 oz (100 ml) can't go through the checkpoint. Travel-size jars in your quart bag are fine.
Can you bring peanut butter in checked baggage?
Full-size jars go in checked bags.