Why cant you eat nuts on a plane if someone is allergic?

With a severe enough allergy, inhaling peanut dust can trigger a life-threatening emergency. In a confined space, any number of events could cause an issue: people dumping peanuts into their hands, dusting their hands off, accidentally sneezing while chewing the peanuts, etc.



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The problem with peanuts and tree nuts is that they are dry and flaky so can readily become airborne. Their oils are sticky and stubborn so can endure through a vigorous scrub with soap and water.

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The TSA has finally shared their reasoning behind declaring peanut butter a liquid. The Transportation Security Administration has spoken: You can't bring your jar of peanut butter through airport security. Why? Because, according to them, it's a liquid, not a solid.

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