Travelers should know that while pies are permitted through the security checkpoint, here is a list of liquids, gels and aerosol items that you should put in your checked bag, ship ahead, or leave at home.
Comestibles that are too tempting to terrorists include: gravy; jams; jellies; peanut butter; maple syrup; salsa; sauces; and many others. See the full list for details. NOTE: The TSA has not described the test protocols used to obtain these results.