This is probably a stupid question (stupid because the answer is probably "nay-nay"), but...at least a year ago the friend who got me into brewing and donated a lot of my current brew setup to me awhile back, came over with a box full of old ingredients. That included tons of hops, some were plugs in the original wrapper, others were loose leaf hops not sealed or anything, just in the original freshops bag with a rubber band around it. Now, he had gotten them from some guy awhile back who wasn't brewing anymore, and then gave them to me, and now I've had them for a year. Problem is, since they've changed hands so many times, I've got no way of knowing when these things were originally purchased. I've used some of the plugs for stuff like mash hopping IPA's, etc., but I still have a ton of loose leaf amarillo and styrian goldings. I know they've gotta be at least a couple years old, probably more. They don't smell cheesy, and they're not terribly pungent.
So is there any way to verify their usage for Lambic? Or, after this long with substandard storage and no cheesy smell, is it pretty much a given that they're fine for this purpose?