Family wants me to fry a turkey in my 14 gallon brew kettle. I'm all for fried turkey but worried about lasting effects on my kettle. Anyone have experience with something like this? Also open to suggestions on frying a turkey.
It's a can of metal. If you don't feel you can get the surface clean after the fry (perhaps because of carbonization of organic matter stuck to the surface), then that will be a problem. If you can, then it's a clean surface you will have no problems brewing with in the future.
I'd say: roast away! If there's a problem, lobby to get your family to replace and in fact improve your brew kettle as a remuneration for your trouble. ;)
(Edit:) But most likely, you're going to easily remove any residual oils with soap, because that's what soap does, and any organic matter stuck to the surface will also be easily removed with a bit of elbow grease and a semi-abrasive surface.