The gf and i got some great looking kirby pickles through our CSA today so i decided to attempt pickling for the first time. I used alton brown's recipe for slightly sour pickles, taking care to clean the cucumbers and sterilize the mason jars. I made two jars and sealed them once they came to room temperature some time ago. Since then, the garlic gloves in both jars have taken on a pretty intense greenish blue hue. I read about a similar thing happening while I looked through the comments on the recipe but couldn't find an explanation for it. Is it the result of contamination, or something else i should be concerned with? Thanks for your help chowhounds.