Rules differ by region: The US TSA treats peanut butter as a paste and applies the 100ml liquid rule. Most other countries treat it as solid food with no restriction.
💼 Cabin bag
Depends
TSA treats peanut butter as a paste — must be ≤100ml (3.4oz) in carry-on. Larger jars must go in checked baggage.
✈️ Hold (checked)
Yes
Permitted in any quantity in checked baggage.
💡 Tip: In the US, pack peanut butter in your checked bag or buy a jar under 3.4oz (100ml) for the cabin.
Related items
Browse all Food →Based on official TSA guidelines. Rules vary by airline and route — always verify with your carrier before travel. · Rules last verified May 2026.
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