" is mentioned, travellers may experience a conflict between convenience and caution. Navigating airport security checkpoints can occasionally be hard due to Transportation Security Administration (TSA) regulations and guidelines regarding carry-on items, especially when it comes to food items like peanut butter.
Fans of peanut butter should be aware of the TSA's 3-1-1 liquids rule when preparing for their trip. This regulation states that liquids, gels, and pastes must be packed in quart-sized clear plastic bags and be no more than 3.4 ounces (100 millilitres) in volume. Peanut butter falls under the "paste" category because it isn't frequently sold in travel-sized containers; as a result, you must follow the 3.4-ounce restriction and pack it in the proper plastic bag.
https://justtravo.com/blog/can-you-bring-peanut-butter-on-a-plane/