Why are peanuts allowed on planes?

Peanuts were a low cost fit for airlines and allowed them to cut back on extravagant meals. Delta Airlines, whose home state of Georgia is the number one producer of peanuts in the US, served peanuts, cheese, and crackers to passengers on flights when no meal was served [3].



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There is no evidence to show that peanut or tree nut residue circulates in the air, as opposed to it quickly settling on surfaces. The widespread and often repeated belief about dangerous particles becoming airborne from opened nut packets (known as aerosolization) is a myth.

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The TSA has spoken: In March, the airport-security agency nearly broke the internet when it declared that it considers peanut butter to be a liquid and therefore subject to the 3.4-ounce limit for carry-on bags. Its reasoning: “A liquid has no definite shape and takes a shape dictated by its container.”

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Multiple pilots stepped up to answer the question, but the response was unanimous, while you may have the best of intentions - don't do it. Scott Kinder, a 737 Captain at a Major U.S. Airline for over 10 years said, Don't even think about it.

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We will also stop the sale of any products containing nut traces on board. However, we cannot guarantee a nut or allergen-free environment. If you have another allergen which requires an epinephrine (adrenaline) auto-injector, please ensure you carry your medication with you and inform the cabin crew on boarding.

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You can take solid foods like sandwiches, biscuits, fruit, nuts, etc. on board but the same restrictions for liquids apply to liquid foods, e.g. drinks, soups, sauces, jam or jelly (see guidance above). Be aware that there are no facilities to warm or refrigerate anything that you bring onboard.

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Foods you can't pack in your carry-on
Think: creamy cheeses, liquid chocolate, liquid coffee, creamy dips and spreads, gravy, honey, hummus, ice cream, jam, jelly, juice, syrup, peanut butter, salad dressing, sauce, salsa, soda, soup and yogurt.

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Each passenger may carry liquids, gels and aerosols in travel-size containers that are 3.4 ounces or100 milliliters. Each passenger is limited to one quart-size bag of liquids, gels and aerosols.

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