Might depend on where you buy it from. Possibly some shops might still have old tins from a couple of years ago when there was a problem, but I thought it was all pretty well sorted out by now. Granted that with organic stuff there's always a possibility, but C&D's rep isn't really much worse than any other makers, & they go out of their way to fix issues. I guess personally I probably check anything I got just for peace of mind, but I'm not a cellar guy; when I buy it I smoke it. If you cellar you probably do want to check & then jar it. If you open one of each & it looks OK & the others are from the same batch you're probably OK.
Bill