So I've been saving the left over bottle caps from the various batches I've done since there's always been a few extra left over. I've been storing them in a plastic ziplock bag and probably have enough saved to where I don't need to buy extra for this next batch. Thing is when I took them out the other day I found that some of them on the bottom had gotten pretty rusty (guess I didn't dry them off enough when putting them away). I've thrown out the really bad ones, but do I need to just go ahead and trash all of them and buy some new ones? Some aren't too bad and only have rust on the crimping part.