Not as OT as you might think... I've been steeping a gallon jar full of Bolivian Rainbow chiles and whole garlic cloves in white vinegar for a week now, intending to use it as the basis of some hot sauce, but over the last couple of days I've noticed that some - not all- of the garlic has begun to turn a rather fetching shade of blue (more lavender, really). I recall reading somewhere earlier on the list that this had to do with iodine content (although I haven't put salt, iodized or otherwise, in this mix) - but the core question is, is the blue garlic still safe to eat, or is the discoloration indicative of bacteria or something else that would recommend discarding this batch?