The nearest major airport is Indianapolis International Airport (IND / KIND). This airport has international and domestic flights from Indianapolis, Indiana and is 71 miles from the center of Purdue University.
Here is the official FDA definition of natural flavoring: Natural flavor is the essential oil, oleoresin, essence or extractive, protein hydrolysate, distillate, or any product of roasting, heating or enzymolysis, which contains the flavoring constituents derived from a spice, fruit or fruit juice, vegetable or vegetable juice, edible yeast, herb, bark, bud, root, leaf or similar plant material, meat, seafood, poultry, eggs, dairy products, or fermentation products thereof, whose ...
A major ingredients supplier told us this about some of their vanilla flavorings: [Castoreum] is not a common raw material that is used and we don't use it, so I can safely say that our natural vanilla flavors do not contain any animal juices. All vanilla extracts are free of it, too, wherever you go..